Random Episodes
Damien
Eric is handing out invitations to his birthday party at school. Mr. Garrison informs them all that there is a new student joining the class. Announcing to all that he is Damien, the son of Satan. Eve... 
Mecha Striesand
The boys meet up with Barbara Streisand who wants to take over the world with Kyle's discovery and an archaeological dig. Leonard Maltin, Sydney Potier, and Robert Smith come to the rescue to defeat B... 
Nobody Got Cereal?
Part two of two. As the town panics over the recent destruction, the boys escape police custody. Stan confronts the one responsible for bringing the creature to South Park. Search Episodes
If you're looking for an episode but cant remember which season it's in but can remember part of the title use this.
Short searches like "cartman" usually yield best results.
