Liberal Premier Dalton McGuinty, left, debates former Progressive Leader John Tory during the 2007 leaders debate. This year McGuinty will face PC Leader Tim Hudak and Andrea Horwath of the New Democrats on Sept. 27. ((Canadian Press))

Leaders of Ontario’s main political parties will square off in a televised debate set for the evening of Tuesday, Sept. 27.

The campaign’s only scheduled debate ahead of the Oct. 6 election will be broadcast on CBC, CTV, Global, TVO and Sun News Network.

The debate is set for 6:30 to 8:00 p.m. The venue, format and moderator have yet to be decided.

Participating in the debate will be Premier Dalton McGuinty of the Liberals, Tim Hudak of the Progressive Conservative Party and Andrea Horwath of the Ontario New Democrats.