Tina Fey in 30 Rock.
Channel Seven, 11.15pm
Susan Sarandon is the superstar cameo tonight. Required to do nothing more than deliver ludicrous lines with the utmost gravity, she portrays the convicted-paedophile (''We prefer the term 'adultophobe''') love interest to Frank with aplomb. Elsewhere, Liz pretends to be Frank's girlfriend so Frank's mother doesn't find out he's in love with Sarandon's Lyn; Jenna and Tracy play out their own CSI in the writers' room; and Kenneth is moving up the corporate ladder - mentored by Jack. You know that's not going to end well.