“It’s the Great Pumpkin, Charlie Brown,” 7 p.m., ABC (1966)
It’s not Halloween without this beloved cartoon. Watch as Charlie Brown is finally invited to a Halloween party and Linus waits patiently for the Great Pumpkin.
“SNL Halloween,” 7 p.m. to 8:01 p.m., NBC (new)
Live from New York, it’s ... Halloween? Why not? This is the first of three holiday specials this fall for the comedy sketch show.
“The Vampire Diaries,” 7 p.m., CW (new)
Elena meets a sad student with secrets on campus. Later, Elena and Damon attend a ball dressed as Anne Boleyn and Henry VIII.
“Ghost Adventures,” 8 p.m. to 10 p.m., Travel (new)
In a Halloween special, Zak, Nick and Aaron travel to Transylvania, Romania, where they explore the legend of Vlad the Impaler.
“Grey’s Anatomy,” 8 p.m., ABC (new)
A series of eerie patients arrives at the hospital on Halloween, and one of them puts a doctor at risk. Shocker!
“Reign,” 8 p.m., CW (new)
A Portuguese prince says he’ll help Scotland as Mary accepts his proposal of marriage.
“The Crazy Ones,” 8:01 p.m. to 8:31 p.m., CBS (new)
Simon is nominated for a big advertising award — as is Sydney’s high school crush.
“Scandal,” 9 p.m., ABC (new)
Pope and Associates take on the congresswoman (guest star Lisa Kudrow) who may be an electoral threat to Fitz, while Olivia and Mellie have an encounter at the Correspondents’ Dinner.
“Parenthood,” 9 p.m., NBC (new)
Sarah and Amber deal with wedding problems, while Kristina and Adam get help for the campaign.
“Covert Affairs,” 9 p.m. to 10:01 p.m., USA (new)
Henry reaches out to Calder, while Joan’s revelation of a key fact in her deposition drives a wedge between herself and Arther.