In an interview with the Observer, Hunt said that the BBC had been out of touch with public opinion in the past and demonstrated a clear bias to the left on issues such as Europe and immigration.
He added: "I think if you were to discover how people vote at the BBC there are probably more who vote Labour or for the Liberal Democrats than the Conservatives."
However, Hunt - whose surname was accidentally changed to an expletive on Radio 4 last week - praised the BBC for making excellent programmes and providing comprehensive news coverage.
He also stressed that the BBC's journalists always put their commitment to even-handed reporting above their "political affiliations".
Hunt's claims about the BBC's political bias follow comments from BBC director general Mark Thompson earlier in the year about the corporation having a "massive bias to the left" when he joined in late 1970s.
BBC veterans John Simpson and Roger Bolton immediately criticised Thompson, arguing that the corporation has always been "straight as a die" with its reporting.
Elsewhere in the interview, Hunt vented his frustrations at the BBC's decision to air a Panorama investigation into corruption at FIFA so close to the 2018 World Cup vote. Echoing the belief of others, he said that the programme damaged England's bid, describing it as "a nightmare".