Question: When id the episode broadcast with Mark Webber as Jamie and John's guest?
SQL: SELECT "First broadcast" FROM "1-29141354-4" WHERE "Jamie and Johns guest" = 'Mark Webber';

Question: What date did the episode with Andy Murray as Jamie and John's guest first broadcast?
SQL: SELECT "First broadcast" FROM "1-29141354-4" WHERE "Jamie and Johns guest" = 'Andy Murray';

Question: How many items are listed under 'andrew and georgies guest lee mack replaced andrew flint as team captain for one week' for episode 04x04?
SQL: SELECT COUNT("Andrew and Georgies guest Lee Mack replaced Andrew Flintoff as team captain for one week in series 4, episode 2.") FROM "1-29141354-4" WHERE "Episode" = '04x04';