Initially, the channel would broadcast cartoons 24 hours a day. Most of the short cartoons were aired in half-hour or hour-long packages, usually separated by character or studio – Down Wit' Droopy D aired old Droopy Dog shorts, The Tom and Jerry Show presented the classic cat-and-mouse team, and Bugs and Daffy Tonight provided classic Looney Tunes shorts. Late Night Black and White showed early black-and-white cartoons (mostly from the Fleischer Studios and Walter Lantz cartoons from the 1930s, as well as black-and-white Merrie Melodies and MGM cartoons), and ToonHeads would show three shorts with a similar theme and provide trivia about the cartoons.[citation needed] There was also an afternoon cartoon block called High Noon Toons, which was hosted by cowboy hand puppets (an example of the simplicity and imagination the network had in its early years). The majority of the classic animation that was shown on Cartoon Network no longer air on a regular basis, with the exception of Tom and Jerry and Looney Tunes.