Primetime Preview: Series Finale of ER

Sorry, fans of The Office and 30 Rock. NBC is dedicating its entire primetime schedule tonight to the series finale of ER...

• 8:00 p.m. - Camille's ex-fiance ends up dead on Bones (Fox); Davis needs help from Chloe on Smallville (CW).
• 8:30 p.m. - Sam acts a mother to Dena's dog on Samantha Who? (ABC).
• 9:00 p.m. - The two-hour series finale of ER (NBC); the 200th episode of CSI (CBS).
• 10:00 p.m. - The season finale of Eleventh Hour (CBS).