If you were watching television in 1975 ... and One Day at a Time, classic comedies like Barney Miller and Welcome Back, Kotter, Saturday Night Live (still going strong in the show's 50th year ...

CBS via Getty; Dia Dipasupil/WireImage Years before she won her first Golden Globe for her role on One Day at a Time, Valerie Bertinelli already knew that the show would change her life.

Some 50 years ago, on March 1 1975, Australian television stations officially moved to colour. Networks celebrated the day ... owned colour TV sets, making Australia one of the world’s fastest ...