Looney Tunes Intro Bloopers (LTIB) is a series of YouTube videos by Dave Madson. It mainly focuses on the Microsoft text-to-speech voices working for Warner Brothers, with Sam the driving force of the crew. They repeatedly try to get the opening intro right but screw it up every time, whether it's changing the letters on the shield, messing up the words when the shield is not replaced or the wrong letters appearing and usually replacing the logo.

The series ended in April 2014 after Dave closed his YouTube account due to personal reasons and the fact that Windows XP is no longer supported. The series has since been spun off by British YouTuber Geraint Lewis, starting May 2013 and still ongoing.

This series provides the following running gags;

Tantrums

In most episodes of the series Sam reaches breaking point after not getting his own way with the boss of the studio and throws a loud, long, uncontrollable tantrum, which always ends with him exploding. This trend has spread to other characters in the series.

Shield Guy

Shield Guy is the title given to the person in charge of the WB shield. However Sam always seems to pin the blame on him whenever the intro screws up and fires and re-hires him every other episode. Radar Overseer Scotty is the incumbent Shield Guy, having replaced Guy from episode 30 onwards.

Scary Logos

Scary TV closing logos over the years (such as the Klasky Csupo robot and the 1997 Bravo UK logo) arrive in some episodes to scare Sam and capture him under orders from the Devil. Anna always defeats them in the end by using her laser vision.