Why don't you simply go to the
Internet Movie Database?
If it's a season release, just go to the show in question on the site and the episodes would be detailed.
Here is a link to the 5 seasons (1959-64) of the classic
The Twilight Zone on IMDB.
"The Twilight Zone" (1959) - Episode list
Likewise, here's the episode entries for
CSI (the original, and IMHO the ONLY one that counts!):
"CSI: Crime Scene Investigation" (2000) - Episode list