How 2 was a British educational television show which ran on CITV between 1990 and 2006. It served as a modernised "sequel" to a 60’s / 70's series with the same format called 'How'. Each episode started with the presenters sitting around the studio table asking their own question starting with “How” and then taking turns answering these. Subjects of science and history were often covered along with logic and word play puzzles.

Gareth Jones
Himself

Fred Dinenage
Himself
Gail McKenna
Herself

Carol Vorderman
Herself

Gail Porter
Herself

Siân Lloyd
Herself
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The Magic School Bus76%
Curious George72%
True Jackson, VP79%
Bubble Guppies76%
Daniel Tiger's Neighborhood70%
The Busy World of Richard Scarry76%
Sesame Street71%
Numberblocks84%
Batwheels70%
Little Einsteins71%
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Cow and Chicken70%
The Wiggles62%
Mister Rogers' Neighborhood60%
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Tom & Jerry Kids Show65%