Best bets on TV tonight

“Ghost Whisperer” (8 p.m., CBS): Oh so creepy: On “Ghost Whisperer,” the Headless Horseman from “The Legend of Sleepy Hollow” is haunting Melinda. Then she freaks out when the book mysteriously shows up at her son’s school.

“Medium” (9 p.m., CBS): How cool is this? On “Medium,” Allison has vivid nightmares that insert her into scenes from the classic horror film “Night of the Living Dead.” OK, well, maybe that’s not so cool for Allison.