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Deal.ai › Mediasonic
Mediasonic
ATSC Digital Converter Box with TV Tuner, TV Recording 1080P HDMI Output, Clear QAM
Mediasonic

ATSC Digital Converter Box with TV Tuner, TV Recording 1080P HDMI Output, Clear QAM

3.8(92 ratings)

Best price now

$35.99at WalmartChecked 15 min ago

Compared across 3 stores. Prices are checked against each store and labelled with when.

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Price facts

  • Lowest price today: $35.99 at Walmart (checked Nov 11, 2026).
  • Checked at 3 stores.

Our take on the ATSC Digital Converter Box with TV Tuner, TV Recording 1080P HDMI Output, Clear QAM

The Mediasonic HW135STB is a compact ATSC digital converter box that adds over-the-air tuning and recording to TVs, monitors, or projectors lacking a built-in tuner. It outputs up to 1080P over HDMI and supports scheduled recording and live TV pause to a USB hard drive. Its small size and USB-C power make it easy to tuck behind a TV, but it requires an external antenna and is not a cable box replacement. Reviewers praise its value and recording features, though some find the interface clunky and the remote less responsive.

Best forCutting the cord and watching free OTA channelsAdding a tuner to a monitor or projectorRecording and pausing live TVSmall spaces where a full-size box won't fit
Pros
  • Compact and lightweight design
  • HDMI output up to 1080P
  • Records to USB hard drive and supports pause live TV
  • Includes HDMI and AV cables and a large remote
  • USB-C powered from TV or adapter
Cons
  • Requires an external antenna for reception
  • Recording limited to 2TB MBR-formatted drives
  • Electronic program guide can be slow or incomplete
  • Remote control may require precise aiming
  • Not a replacement for a cable box

ATSC Digital Converter Box with TV Tuner, TV Recording 1080P HDMI Output, Clear QAM prices at every store

  • WalmartNew

    In stockSold by MediasonicReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.

    $35.99Free shippingChecked 15 min ago
    Visit Walmart
  • Best BuyNew

    In stock

    $35.99Free shippingChecked 1 h ago
    Visit Best Buy
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $35.99Free shippingChecked 1 h ago
    Visit Amazon

Store links may earn us a commission. Some prices via Klarna.

ATSC Digital Converter Box with TV Tuner, TV Recording 1080P HDMI Output, Clear QAM price history

Lowest price we've seen: $35.99 on Nov 11 at Amazon. Tracked across 2 stores since Nov 11.

What reviewers say

  • 3.8 / 592 ratings

Owners appreciate the Mediasonic HW135STB for its affordability and ability to record OTA shows, but many complain about a clunky interface and occasional signal dropouts. The remote and setup process draw mixed feedback.

What people mention
  • SetupMixedSome find initial channel scan and menu navigation straightforward, while others say the interface is not intuitive.
  • RecordingPraisedUsers like the ability to schedule recordings and pause live TV, though a few note that drive compatibility can be finicky.
  • RemoteCriticisedThe included remote is often described as requiring a direct line of sight and having small buttons.
  • SignalMixedReception is good with a strong antenna, but some report dropouts and pixelation in weaker signal areas.
  • PicturePraisedWhen the signal is good, the HDMI output delivers a clear 1080P picture.

About the ATSC Digital Converter Box with TV Tuner, TV Recording 1080P HDMI Output, Clear QAM

The Mediasonic HW135STB is an ATSC digital converter box with a TV tuner. It converts over-the-air ATSC digital broadcasts for analog and digital TVs and outputs 1080P video over HDMI. It can also add a tuner to a TV that doesn't have one built in. It works with projectors and computer monitors as well.

The box records live TV in real time or on a schedule, and it can pause live TV. Recording requires an external USB 2.0 or 3.0 hard drive. Other features include an electronic program guide, a favorite channel list, parental controls, closed captions, Emergency Alert System notices and timed startup and shutdown. It also has a USB multimedia player and an antenna pass-through for digital ATSC signals. A remote control and an IR receiver with a display are included.

It receives over-the-air signals only and needs an external antenna. It is not a cable box replacement. It does not work with TiVo, encrypted cable signals, or cable and satellite providers such as Comcast, DirecTV, DISH Network and Time Warner Cable. Power comes through a USB-C port from the TV's USB port or a 5V USB charger.

Video output
1080P via HDMI
Audio
Dolby Digital, 5.1 channels, coaxial output
Recording
Real-time and scheduled; pause live TV; external USB 2.0 or 3.0 hard drive required
Ports
Antenna input, HDMI output, USB 3.0, USB 2.0
Power
USB-C; from a TV's USB Type A port or a 5V USB charger
Compatibility
Digital TV, analog TV, projector, computer monitor
OS support
Windows 11, Windows 10
Dimensions
11.8 x 3.5 x 1.7 cm
Weight
0.05 kg
In the box

Specifications

color
BlackSource
size
1.7 ozSource
Video output
1080PSource
Audio support
Dolby Digital AudioSource
Hard drive support

Questions and answers

Does this converter box work with any TV?
It works with any TV, monitor, or projector that has an HDMI or AV input. It is designed for over-the-air ATSC signals, not cable.
Can I record shows without a subscription?
Yes, you can record to a USB hard drive (up to 2TB, MBR format) without any fees. Scheduled and real-time recording are supported.
What antenna do I need?
You need an external ATSC antenna. An indoor or outdoor antenna will work depending on your distance from broadcast towers.
Does it support streaming apps like Netflix?
No, this is a digital converter box for receiving over-the-air TV. It does not have internet apps or streaming services.
Can I use a USB flash drive for recording?
A USB hard drive is recommended. Flash drives may work but are not officially supported and may not handle the write speed for recording.
Is a power adapter included?
It comes with a USB-C to USB-A cable but no wall adapter. You can power it from your TV's USB port or a 5V USB charger.
Where is the ATSC Digital Converter Box with TV Tuner, TV Recording 1080P HDMI Output, Clear QAM cheapest?
At Walmart, for $35.99, as of our latest check.
What do buyers say about the ATSC Digital Converter Box with TV Tuner, TV Recording 1080P HDMI Output, Clear QAM?
Rated 3.8 out of 5 from 92 ratings.
Where can I buy the ATSC Digital Converter Box with TV Tuner, TV Recording 1080P HDMI Output, Clear QAM?
3 stores we checked sell it, including Walmart, Best Buy, Amazon.

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Buying guides that pick the ATSC Digital Converter Box with TV Tuner, TV Recording 1080P HDMI Output, Clear QAM

  • Best over-the-air TV tuners

Stores we've priced the ATSC Digital Converter Box with TV Tuner, TV Recording 1080P HDMI Output, Clear QAM at

  • Best Buy deals and prices
ATSC dongle, IR receiver with display, 3.3 ft USB-C to USB-A power cable, remote control, 3.3 ft HDMI cable, 3.3 ft AV cable, user manual
up to 4TBSource
Power connector
USB-C (Type C)Source
Power source
TV's USB port (USB Type A) or 5V USB ChargerSource
Height
1.7 cmSource
Length
11.8 cmSource
Width
3.5 cmSource
Weight
0.05 kgSource
Inputs/Outputs
HDMI Output, USB, Antenna InputSource
Connector type
USB Type C, USB Type ASource
Maximum Resolution
1080P
Device Type
Converter Box
Subtype
TV Tuner
Input Connection
HDMI
Output Connection
HDMI
Interface Type
USB, HDMI
Ports
USB 3.0, USB 2.0
Number Of Outputs
1 (HDMI)
Input Signal Type
ATSC Digital Broadcast
Output Signal Type
Analog
Signal Conversion Type
Over-The-Air ATSC digital broadcast to analog and digital TV