Question: who guest starred on the episode with a 1.44m rating
SQL: SELECT "Guest(s)" FROM "1-29135051-3" WHERE "Ratings" = '1.44m';

Question: when was the episode on which Barbara Windsor and Heston Blumenthal guest starred broadcasted
SQL: SELECT "Broadcast date" FROM "1-29135051-3" WHERE "Guest(s)" = 'Barbara Windsor and Heston Blumenthal';

Question: how many broadcaste dates features The Overtones
SQL: SELECT COUNT("Broadcast date") FROM "1-29135051-3" WHERE "Singer(s)" = 'The Overtones';

Question: how many guest stars did the episode that was broadcasted 11September2012 have
SQL: SELECT COUNT("Guest(s)") FROM "1-29135051-3" WHERE "Broadcast date" = '11September2012';

Question: when was the episode guest starring Michael McIntyre and Alex James broadcasted
SQL: SELECT "Broadcast date" FROM "1-29135051-3" WHERE "Guest(s)" = 'Michael McIntyre and Alex James';

Question: which episode did Sarah Millican and Grayson Perry appear in
SQL: SELECT MIN("Episode") FROM "1-29135051-3" WHERE "Guest(s)" = 'Sarah Millican and Grayson Perry';