Janine, You've Changed - S6-E1
Trivia: This episode was written by series story-editor J. Michael Straczynski as an inside joke and meta swipe against the network and consulting firm Q5 for forcing them to soften the character of Janine after the first batch of episodes. Their mandate infuriated all the writers, who preferred the original cynical, snappy Janine. Straczynski making Janine's changes the result of an evil entity reportedly infuriated the network and Q5, who realised that he was essentially calling THEM evil.