CREATE TABLE table_25911 ("Episode" CLOB, "First broadcast" CLOB, "Seans team" CLOB, "Daves team" CLOB, "Scores" CLOB)

What was the first broadcast date of the episode in which Sean's team is made up of Peter Serafinowicz and Johnny Vegas?
SELECT "First broadcast" FROM table_25911 WHERE "Seans team" = 'Peter Serafinowicz and Johnny Vegas'
SELECT "First broadcast" FROM "table_25911" WHERE "Seans team" = 'Peter Serafinowicz and Johnny Vegas'