Life's a Bitch, a half-hour animated series based on the Naughty Bits comics by Roberta Gregory, is being shown Sundays on the Oxygen cable network. Mo Collins of Mad TV voices Midge, Khandi Alexander of CSI Miami, ER, and Newsradio is Yolanda, and Elaine Stritch is Mom, with cameos by Quincy Jones. The series has grown up from its interstitial origins three years ago, when it premiered as Bitchy Bits in 15 3-minuite episodes. Last year, four 11-minute episodes of Bitchy Bitch were produced.