I use TVTime, which you can install via Add/Remove, for watching TV and my own Firefox extension for recording, scheduling, etc (link in my signature).
Originally Posted by spitslover
You could also try Kaffeine.
To setup my TV card with TVTime, I did the following, but I'm not sure if an USB card works the same way:
First install TVTime. You can find it in the Add/Remove manager or run the following command on a terminal.
Then you need to edit /etc/modprobe.d/options
sudo apt-get tvtime
Run the following command to open it with the text editor:
In the editor, add the following line to the end of the file
sudo gedit /etc/modprobe.d/options
You need to change the values in red, since they are card specific. You can try to find it here.
options saa7134 card=26 tuner=33 alsa=1
Back to the terminal run:
Reboot. Open TVTime through the Applications menu or by running this command:
sudo modprobe saa7134 card=26 tuner=33
Configure TVTime with the OSD menu.Some important settings:
Input Configuration > Change video source: Television
Input Configuration > Television standard: NTSC, PAL-M....
Channel Management > Change Frequency table: Cable
Then do a channel scan:
Channel Management > Scan channels for signal
This should be enough to make TVTime tune some channels.