Actually, neither one holds much interest from me. How about if I sit at the bar and watch NCIS repeats. :)
Game show, I'd sacrifice all my limbs except for the one needed to press the button.
I'd rather make a cameo on my favorite TV show. That way I'd have a few takes to get it right (not appear like a dufus).
I would use my time machine and cheat. Inventing the moving pictures in the 14th Century Mongolian desert has always been a dream of mine.