tvtime

This is not a tvtime-problem, you might try editing udev-rules, there you
can define what device get's which device-file on the filesystem.
Something like: http://www.debianhelp.org/node/9235

If you allways have the usb-cam attached, you can also easy go with your
solution as well.

Amazingly enough I found the answer mere seconds before your reply. I
changed my tvtime.xml file to read as follows;

<option name="V4LDevice" value="/dev/video1"/>

Previously it defaulted to <option name="V4LDevice" value="/dev/video0"/>
which is what a reboot was naming my video cam. Thanks for the response
though.

I had the same problem but the solution is very simple - just make an icon
for running tvtime with something like that:
"tvtime --device=/dev/video1"
You've got to check which video device is TV card (by using something
like: "dmesg | grep video").