LA Rat  
Five
1990s

Lassie
ITV
1959?
Live Action

Laurel and Hardy
BBC
1960s
Animation

Lay On Five  
BBC
03 April 1985 - 1986

Legend of Prince Valiant, The
BBC
1990s

Lenny the Lion

Let's Pretend
ITV
1982 - 1988

Lift Off
ITV
1969 - 1974

Lion, the Witch, and the Wardrobe, The
BBC
13 November 1988 - 18 December 1988
Drama

Lippy the Lion and Hardy Har Har
1970s

Littl' Bits, The (aka Mori no Yoki na Kobitotachi: Berufi to Rirubitto)
BBC
1980s
Animation

Little Green Man, The
ITV

Little Misses, The  
BBC
14 February 1983 -
Animation
Transmitted as part of See-Saw

Little Shop
Animation

Littlest Hobo, The
Live Action

Live & Kicking
BBC
02 October 1993 - 15 September 2001
Saturday

Look and Read
BBC
09 January 1967 - 29 March 2004
Education

Looking and Seeing
ITV
1957
Education

Looney Tunes
Animation

Lost in Space

Ludwig
1977
Animation