Why so much of not enough?

[jogram]

I missed some important tv shows: one each of ****, **** and ****. I was delighted to find LimeWire where I could download and watch the missing episodes. Now I'm sad to say that none of the files is large enough to hold the missing episodes. They're all around 350 kbs. What they contain is sound only, so why are they in the video section? If I can get whole movies, why can't I get whole tv episodes? And the 1,700 kb hdtv file took me hours to download and played for about 10 seconds. Ok, I've learned a lot, I think maybe I've had a joke played on me (hdtv), but I still haven't got what I came here for.