[2] In this cartoon, partly inspired by a 1944 Cary Grant film entitled Once Upon a Time, Michigan is a male frog who wears a top hat; carries a cane; and sings pop music, ragtime, Tin Pan Alley hits, and other songs from the late 19th and early 20th centuries while dancing and performing acrobatics in the style of early 20th century vaudeville.

[5] The Looney Tunes Golden Collection DVD credits Frog's original singing vocals to Bill Roberts, a nightclub entertainer in Los Angeles in the 1950s who had also done voice work for the 1948 MGM cartoon Little 'Tinker.

Ma Baby", which can also be heard in the background as Michigan croaks) as the one who sent one of his futuristic robots to destroy Bugs Bunny, and he later appeared in the show's second season intro.

The network's first night of programming on January 11, 1995, began with Bugs Bunny and Daffy Duck wondering which one of them would pull the switch to launch The WB.

Before the beginning of Savannah, for example, the frog would sing a short monologue suggesting that "there's more comedy for the family Wednesday nights" and that kids should go to bed, meaning that the show coming on would be for mature audiences only.

In later shows like Buffy the Vampire Slayer and Angel, the announcer would present a TV-PG disclaimer, though the frog still appeared as a neon sign.

On July 22, 2005, Michigan's "death" was announced by WB Chairman Garth Ancier at a fall season preview with the terse statement "The frog is dead and buried."

On February 5, 2003, two years before Michigan's retirement, the Chappelle's Show episode "Zapped & It's a Wonderful Chest" aired with a skit mocking the character's connections to blackface.

A neon likeness of Michigan J. Frog also adorns the facade of former WB affiliate WBNX-TV's studio complex in Cuyahoga Falls, Ohio.