Question: When does toby come back to the office?
Disambiguated questions and answers: question: What episode does toby come back to the office?
Which date did the episode air that toby comes back to the office?
answer: Season 5 Episode 9
Frame Toby
November 20, 2008
Natural Questions answer: midway through season 5 (from the Wikipedia article "Toby Flenderson")