The Tomorrow Show (also known as Tomorrow with Tom Snyder or Tomorrow and, after 1980, Tomorrow Coast to Coast) is an American late-night television talk show hosted by Tom Snyder that aired on NBC in first-run form from October 1973 to December 1981, at which point its reruns continued until late January 1982.

Straddling the line between news and entertainment and airing immediately following The Tonight Show Starring Johnny Carson, notable guests of Tomorrow throughout its eight-year run included Ken Kesey, Charles Manson, Spiro Agnew, Harlan Ellison, Alfred Hitchcock, Jimmy Hoffa, Sterling Hayden, David Brenner, and James Baldwin. Unique and often revealing one-on-one exchanges were the program's staple. As Johnny Carson had mostly abandoned the highbrow, intellectual guests that were common on The Tonight Show in its early years (especially during Jack Paar's hosting run), and during the show's run from New York, many of those types of guests—such as social satirist Mort Sahl, actor-activist Marlon Brando, and novelist-philosopher Ayn Rand—eventually ended up on Tomorrow.

Musicians featured on the program included The Clash, Jerry Garcia and the Grateful Dead, KISS, John Lennon (in his last televised interview), Paul McCartney, Public Image Ltd, the Ramones, U2 (in their first American television appearance), Anne Murray, "Weird Al" Yankovic (in his first televised appearance), and Wendy O. Williams and the Plasmatics. Los Angeles news anchor Kelly Lange, a colleague of Snyder, was the regular substitute guest host.

In fall 1973, NBC's decision to launch a nightly program after the Tonight Show was prompted by the 1970 Public Health Cigarette Smoking Act, which banned tobacco advertising on television in the United States, resulting in a loss of revenue for the network. The thinking was that extending the broadcast day by one hour could help recover some of that income. NBC had already begun programming the post-Tonight Show time slot on early Saturdays (late Fridays) with The Midnight Special, which began regular airings (initially brokered) eight months before Tomorrow launched; the success of The Midnight Special was a likely factor in expanding programming in the time slot to five days a week.

Overseeing implementation of the new Monday-to-Thursday nightly program was Herbert Schlosser, the president of NBC television. Schlosser had also had a hand in putting The Midnight Special on NBC eight months prior and had previously spent years as the RCA Corporation-owned television network's vice president for programs on the West Coast. With a job description involving program development among other duties, in the case of launching Tomorrow, Schlosser—reporting to NBC president Julian Goodman—ran into bureaucratic obstacles within the network and in order to try to expedite the internal approval process, on Goodman's advice, decided to leak information about the planned weeknights program to Variety's television beat journalist Les Brown.

The Tomorrow hosting duties were given to local television personality Tom Snyder, who had been working as a news anchor at the network-owned-and-operated KNBC station in Los Angeles, where his colleagues included Tom Brokaw and Bryant Gumbel.

Some ten hours before the program's premiere, NBC organized an afternoon preview screening for journalists and reporters, showing them a mix of already-recorded Tomorrow segments that ostensibly were to air in initial episodes. In addition to Snyder's opening and closing monologues, the reporters saw his panel interview on group marriages. Slight controversy would soon be raised upon realization that neither of the two Snyder monologues the reporters watched at the preview aired the same way in the debut episode that night, with no reasons for the censorship provided by NBC. The censored brief opening monologue reportedly originally featured Snyder somewhat brusquely and impatiently commenting on the Watergate-related "U.S. vice president Spiro Agnew's resignation in disgrace and the questionability of president Richard Nixon's subsequent 'Dear Ted' letter."

Based on the preview screening, New York Times reporter and critic John J. O'Connor referred to Snyder as "baring a personality that is supposed to be brash and abrasive," while in terms of the show's future, the journalist noncommittally concluded, "Tomorrow could turn into the TV version of those radio phone-in shows that work furiously and boringly at being outrageous or it could give the tired format of the TV talk show a desperately needed dose of life.”