In 1990, television in the United States saw a number of significant events, including the debuts, finales, and cancellations of television shows; the launch, closure, and rebranding of channels; changes and additions to network affiliations by stations; controversies, business transactions, and carriage disputes; and the deaths of individuals who had made notable contributions to the medium.
The following is a list of shows that premiered in 1990.
A list of programs (current or canceled) that have accumulated enough episodes (between 65 and 100) or seasons (3 or more) to be eligible for off-network syndication and/or basic cable runs.
The following shows aired new episodes on a different network than previous first-run episodes: