The show kept this format until the series' third season ended in 2002.

It was not until the last series that they were seen to come alive.

He did not become a regular until the third series of No. 73 shown in 1983.

She played the role until the series ended in 1998.

Russ played this role until the series ended in 2000.

Anderson played the character from 1954 until the series' final show on September 24, 1960.

He played that role for eleven years, until the series ended in 1992.

She played the role from 1977 until the series ended in 1982.

He played that role until the series went off the air on December 28, 1984.

She was on the show until the series ended in 2001.