is there a power cord available for my tv/dvd combo
Insignia Model NS24ED200NA14 REV E 24 Inch
Nope, you'll have to buy a hamster that runs in a wheel that is hooked up to an electric generator which will power your tv/dvd combo. The faster the hamster runs the better the reception will be. My best advice is to get two hamsters because one will eventually get tired and you'd hate to have it stop running right in the middle of a highly suspenseful movie. Having the second hamster will allow them to take turns running in the wheel so one can run while the other rests. I would also highly recommend that you get same sexed hamsters, otherwise you may have a large number of hamsters in reserve.
Hope that helps!