Question: What age group did the channel that carried the 30 episode series that debuted on January 7,2007 focus on?
Sentence (from "This Is Petula Clark"): This is Petula Clark was a comedy/variety television show that aired on the BBC, with the first six episode series in summer of 1966 and a seven episode series from December 1967 to January 1968.
Relevant evidence: No