TBS and Conan O’Brien‘s late night comedy series “Conan” won’t premiere until Monday, November 8, but the network is planning to give fans a sneak peek a week early via a webcast.

Dubbed “Show Zero,” the program will run at 11 PM November 1, and will be available on TeamCoco.com, YouTube.com and Facebook.com.

It won’t be a full episode (it won’t even take place on Conan’s set) but viewers can still expect “celebrity guests, elements of “The Basic Cable Band” and Andy Richter as they help O’Brien warm up for the main event,” according to TBS.

Advertising Age reports that Diet Coke is on board as the official sponsor of “Show Zero,” and will be featured both in the opening and a live in-show commercial.

The official trailer is below.