Season 5 finale, 8 p.m., CBSAlyson Hannigan) and Marshall (Jason Segel) promise to try to have a baby after they see Barney's (Neil Patrick Harris) doppelganger. Plus, Robin (Cobie Smulders) is offered her dream job, and we probably won't meet the mother.
Series finale, 8 p.m., FOXKiefer Sutherland) takes a two-hour nap. Kidding! In the series finale, Jack embarks on a vengeance mission while President Taylor (Cherry Jones) continues to focus on the peace treaty.
Season 3 finale, 8 p.m., NBCScott Bakula) helps defend Chuck (Zachary Levi) and his team from the Ring and Big Mike (Mark Christopher Lawrence) receives some big news about the Buy More.
Series finale, 8 & 8:30 p.m., ABC FamilyLindsey Shaw) considers studying abroad in Nepal and Bianca (Meaghan Jette Martin) struggles to cope with the fact that her father (Larry Miller) is dating again. And in the second, Kat decides to run for school president and Bianca quits the cheerleading squad. Hopefully all those things relate to each other at the end.
Season 6 premiere, 9 p.m., ABC
Series finale, 10 p.m, NBCJeremy Sisto) and Bernard (Anthony Anderson) search for a blogger who threatened to blow up a school and Van Buren's (S. Epatha Merkerson) private life is exposed. Dun-dun.
Also on the airwaves...
Dancing with the Stars, 8 p.m., ABC
Rules of Engagement, Season 4 finale, 8:30 p.m., CBS
Two and a Half Men, Season 7 finale, 9 p.m., CBS
The Big Bang Theory, Season 3 finale, 9:30 p.m., CBS
CSi: Miami, Season 8 finale, 10 p.m., CBS
The Real Housewives of New Jersey, 10 p.m., BRAVO
Nurse Jackie, 10 p.m., SHO
United States of Tara, 10:30 p.m., SHO
NBA Basketball Playoffs: Magic v. Celtics
MLB Baseball: Red Sox v. Rays
What are you watching tonight?