Beleagured U.S. president George Dubya takes over the TV airwaves for an address at 7 p.m. — so expect many of the shows below to start about 20 minutes late.

Meredith and Derek have to make a decision about the dog — and maybe veterinarian Finn, too — and Callie gives George an ultimatum on the conclusion of a two-part season finale on Grey’s Anatomy, on ABC Ch. 7 and CKY Ch. 5 at 8 p.m.

Who let the dogs out? Warden Pope unleashes the hounds when inmates run for their lives on the season finale of Prison Break, on Fox Ch. 49 and Global Ch. 12 at 7 p.m.

I just knew secret service hero Aaron wouldn’t let us down. He’s back on 24, on Fox Ch. 49 and Global Ch. 12 at 8:20 p.m.

Delko has to deal with a woman scorned, but his troubles don’t add up to a hill of beans next to newlywed Horatio’s woes. The Mala Noche gang leader escapes from jail and puts out a hit on H — but somebody has bad aim, on CSI: Miami, on CBS Ch. 4 at 9 p.m. and CKY Ch. 5 at 7 p.m.

TomKat, Barbra Streisand and a who’s who of other celebs pay tribute to 25 influential women, from Rosa Parks to Toni Morrison to Tina Turner on Oprah Winfrey’s Legends Ball, on ABC Ch. 7 at 7 p.m.

Russell disentangles himself from the meth house and finds his way back to work — without a wallet or cell phone — and Huff’s dad Ben plans to stick around a while on Huff, on Movie Central Ch. 55 at 10 p.m.

A player gets to ask her Iraq-based soldier husband for advice live via satellite on a two-hour episode of Deal or No Deal, on NBC Ch. 6 at 7 p.m.

The designers pick through a charity rag bin to get material for fabulous ensembles on Project Catwalk, on Life Ch. 44 at 9 p.m.

Charlie’s ex-girlfriend asks him to loan her some DNA so she can have a baby, but he ups the ante with another proposal on Two and a Half Men, on CBS Ch. 4 at 8 p.m.

Christine tries to sneak into a Rolling Stones concert on The New Adventures of Old Christine, on CBS Ch. 4 at 8:30 p.m.

Marshall confronts Lily about her school plans, and Ted bares his soul to Robin before her weekend vacation with obnoxious news guy Sandy (Alyson Hannigan’s real-life husband Alexis Denisof) on How I Met Your Mother, on CBS Ch. 4 at 7:30 pm.

History TV kicks off London week with Gunpowder Plot, retracing Guy Fawkes’ 1605 attempt to blow up the British parliament real good, on Ch. 17 at 7 p.m.