Arkham TV

Watch and record free-to-air television on Linux with a compatible USB DVB-T/T2 tuner or USB HDMI capture device. Available for ARM64 and 64-bit Intel/AMD.

New in 1.10 · HDMI and picture controls

Open HDMI input to watch an external TV receiver through a USB capture device. In Live, choose a picture mode or save personal brightness, contrast, sharpness and color settings.

On a fresh install, open HDMI input to save the HDMI permissions helper and install it once in Ubuntu's App Center. Return to Arkham TV, check the installation and choose Allow. Ubuntu asks an administrator to approve camera and audio access.

New in 1.9 · Invisible TV

Explore scanned frequencies as planets in a 3D universe. The antenna sits at the centre, and each planet’s satellites are the channels that share its frequency. Select a planet to zoom in, then select a channel to tune in.

Follow the active signal through animated electric pulses with red and blue edges. Data flows shows how much data goes to video, audio, subtitles and teletext. Timeline shows recent reception changes, and Channel anatomy lists the tracks carried by the channel.

New in 1.9 · Teletext over the air

Open Teletext to load the broadcaster’s index automatically as pages arrive. Choose a channel or enter a page number to jump straight to it.

Use Reading for clearer headlines, columns and links, or Original view for the broadcast grid, colours and mosaics. Pages stay in the broadcaster’s language.

Live TV, recordings and mobile

Watch live, browse the TV Guide and save channel lists for different locations. Adjust audio sync per channel and use the ten-band equalizer.

Record to MP4 with AAC stereo at up to 4K. Schedule recordings from the TV Guide and keep the app open and your computer awake.

Select Watch on your phone and scan the QR code with an iPhone or Android on the same Wi-Fi network. Rotate the phone to fill the screen and change channels from its TV Guide.

Tuner compatibility

Arkham TV was created to keep the AVerMedia AVerTV Volar HD USB A835 (Afatech AF9035) and A835B (ITE IT9135 family) in use.

Other DVB-T and DVB-T2 tuners work when Ubuntu exposes them in /dev/dvb with a working driver and firmware. Scans cover UHF 21–48 (8 MHz). Playback codecs are included for ARM64 and 64-bit Intel/AMD.

First launch · Enable tuner access

Open Terminal and run this command once before scanning. Automatic DVB access is awaiting Canonical approval.

 sudo snap connect arkham-tv:dvb

The interface and Changelog are available in English and Spanish. Developed by Óscar Peña de San Antonio, 2026.

Recent changes
1.10 · TV from an HDMI receiver
• On macOS and Linux (ARM64 and 64-bit Intel/AMD), connect an Edision nano T265+ or another terrestrial TV receiver with HDMI output through a compatible USB capture device.
• On Linux, confirm video and audio access from HDMI input. The Snap requires the camera and audio recording connections.
• Open HDMI input in Live, choose the capture device’s video and audio, and scan or change channels using the receiver’s remote.
• Record the HDMI input at up to 1080p with stereo sound or share it with your phone. The USB tuner still provides its own over-the-air features.
• On macOS and Linux, Live adds picture modes and a personal setting for brightness, contrast, sharpness, and color.
Open Changelog in Arkham TV to see the full release history.