Never personally tried any-but here is a short list gained fron CNET downloads using search "video correction"
http://www.download.com/3120-20_4-0.html?qt=video+correction&tg=dl-2001&search.x=24&search.y=8
I am looking for software to fix various problems with some old videos that I have copied. (Fuzzy lines, noise, chatter, etc.) Any suggestions?

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic