In American television in 2020, notable events included television show debuts, finales, and cancellations; channel launches, closures, and re-brandings; stations changing or adding their network affiliations; and information about controversies and carriage disputes.
The following shows returned with new episodes after being canceled or previously ending their run: A list of programs (current or canceled) that have accumulated enough episodes (between 65 and 100) or seasons (three or more) to be eligible for off-network syndication and/or basic cable runs.