Table: tv_show_episodes_2
Columns: episode
stage
celebrities
directed_and_produced_by
original_airdate
viewers_overnight_estimates

Question: How many episodes had celebrity guest stars Frank Skinner and Lee Mack?
SQL: SELECT COUNT("episode") FROM tv_show_episodes_2 WHERE "celebrities" = 'Frank Skinner and Lee Mack'

Question: List episode directed and produced by Karen Selway?
SQL: SELECT "episode" FROM tv_show_episodes_2 WHERE "directed_and_produced_by" = 'Karen Selway'

Question: Which episode had celebrities Nick Hewer and Saira Khan in them?
SQL: SELECT "episode" FROM tv_show_episodes_2 WHERE "celebrities" = 'Nick Hewer and Saira Khan'

Question: List the director and producer when Nick Hewer and Saira Khan were starring.
SQL: SELECT "directed_and_produced_by" FROM tv_show_episodes_2 WHERE "celebrities" = 'Nick Hewer and Saira Khan'

Question: List directors and producers when the celebrities involved were Bill Turnbull and Louise Minchin.
SQL: SELECT "directed_and_produced_by" FROM tv_show_episodes_2 WHERE "celebrities" = 'Bill Turnbull and Louise Minchin'