1978 in television may refer to:
- 1978 in American television for television-related events in the United States.
- 1978 in Australian television for television-related events in Australia.
- 1978 in Belgian television for television-related events in Belgium.
- 1978 in Brazilian television for television-related events in Brazil.
- 1978 in British television for television-related events in Great Britain.
- 1978 in Scottish television for television-related events in Scotland.
- 1978 in Canadian television for television-related events in Canada.
- 1978 in Croatian television for television-related events in Croatia.
- 1978 in Danish television for television-related events in Denmark.
- 1978 in Dutch television for television-related events in the Netherlands.
- 1978 in Estonian television for television-related events in the Estonian SSR.
- 1978 in French television for television-related events in France.
- 1978 in German television for television-related events in Germany.
- 1978 in Irish television for television-related events in Ireland.
- 1978 in Italian television for television-related events in Italy.
- 1978 in Japanese television for television-related events in Japan.
- 1978 in Philippine television for television-related events in the Philippines.
- 1978 in Spanish television for television-related events in Spain.