Batman, The Bat-Man and still referred to at times as The Batman, he is additionally known as The Caped Crusader, The Dark Knight, The Dark Night Detective, and The World's Greatest Detective, is a fictional comic book superhero co-created by artist Bob Kane and writer Bill Finger (although only Kane receives official credit), appearing in publications by DC Comics. The character first appeared in Detective Comics #27 in May 1939.
In the original version of the story and the vast majority of subsequent retellings, Batman's secret identity is Bruce Wayne, a billionaire playboy, industrialist, and philanthropist. Having witnessed the murder of his parents as a child, he swore revenge on crime, an oath tempered with the greater ideal of justice. Bruce trains himself both physically and intellectually and dons a bat-themed costume in order to fight crime. Batman operates in the fictional American Gotham City, assisted by various supporting characters including his main sidekick Robin, occasional assistance from former sidekick Batgirl and hero Nightwing, the police commissioner James Gordon, and his butler Alfred Pennyworth, and fights an assortment of villains influenced by the characters' roots in film and pulp magazines. Unlike most superheroes, he does not possess any superpowers; he makes use of intellect, detective skills, science and technology, wealth, physical prowess, and intimidation in his war on crime.
Adam West played Batman in the 1960s TV series. In the years between the end of the show and his work on Family Guy, he was constantly recognized as Batman, to his annoyance. The Family Guy crew has explicitly stated that no direct references to Mayor West as Batman will be made.
Peter watches the 1960s Batman television series while Lois is preparing for sex in "Emission Impossible".
Batman get a completely unnecessary signal from Commissioner Gordon in "FOX-y Lady" where he sees a signal light letting Batman know that the Commissioner is going to the bathroom. Batman states that he "did not need to know that".
Batman appears when Peter and the guys watch The Superfriends Accountant in "Grumpy Old Man". When the accountant tells them that they'll need a loan to pay their taxes and when the accountant suggests that Bruce Wayne might give them a loan, Batman is quick to tell them that he'll not give them the loan.
When Peter is worried that Patrick Pewterschmidt may have committed another murder in "Killer Queen", he threatens to do to him when he did to the Riddler. A cutaway shows a Batman-style fight with colorful verbs describing the action.
When Peter is introduced to George Clooney circa 1997, he notes that he was the second-worst Batman.