I have numerous different entertainment/media cards I would like to know if they are worth anything.?

They vary in years from 1975-1985 and include: star wars, superman 1&2, space:1999, battlestar gallactica, ET, Charlie angels, here's Bo, gremlins, and mork and Mindy. Anything would come in great help due to the fact that I'm trying to pay for a major surgury at 23 and raising 2 children! Thanks!