Julie Chen takes the Ice Bucket challenge, nominates every “Big Brother” contestant ever
Will Arnett helped dump ice water on the “Big Brother” host. Says Chen: "It felt great and fun and funny for about the first 3 seconds and then it was like…am I going to catch pneumonia?!?!?  This is NOT fun anymore…it’s freezing and I am shaking." PLUS: Neil Patrick Harris accepts the Ice Bucket Challenge.

Lena Dunham teases Season 4 of “Girls”
Watch "Hannah" fall off a bike at university.

Syfy’s “Z Nation” gets a premiere date
The zombie drama debuts Wednesday, Sept. 10.

Watch some of Conan’s “scraps”
Last night’s “Scrapisodes” reveals that Conan O’Brien likes to rehearse with a guitar around his neck. PLUS: Watch the “Scrapisodes” intro.

“Grace and Frankie” adds Joe Morton, Geoff Stults and Barry Bostwick
They’ll each recur on the Netflix comedy.

BBC America orders “The Living and the Dead”
The paranormal drama is from the creators of “Life on Mars."

Fox’s year-long “Utopia” will have 129 cameras, over 10 miles of wiring
Producers yesterday gave the media a tour of the ambitious reality show.

Norman Weiss has been doing TV Tattle since the week "Freaks and Geeks" was canceled. He is a Hollywood outsider who was born and raised in Hollywood. "American Idol" and "Dancing with the Stars" are broadcast 2 blocks from his high school.