The Sunderland manager accused Sky Sports of brainwashing the public as the former Manchester United captain railed against the treatment this week of his Arsenal counterpart, Arsene Wenger.
Such is Keane’s disdain for the ‘experts’ in front of the cameras and behind microphones that he admitted he had resorted to turning off the sound on his television.
"I was asked by ITV to do the Celtic versus Manchester United game but I’ve done it once for Sky and never again," Keane said. "I’d rather go to the dentist.
"You’re sitting there with people like Richard Keys and they’re trying to sell something that’s not there.
"Anytime I watch a game on television, I have to turn the commentators off. They say ‘he’s playing well’ and I’m thinking ‘no, he’s not’. My advice to anyone is don’t listen to the experts, Just watch the game and gather your own opinions."
Keane, who insisted he would only consider a job in TV "if I fall on hard times", said: "There was a debate about Wenger on Sky and how crazy is that? People are actually getting interviewed saying he shouldn’t be doing this.
"What that man’s done for English football is amazing and will be remembered in 25, 50, 100 years’ time. Will those on telly yesterday be remembered for what they’ve achieved? None whatsoever.
"I wouldn’t trust them to walk my dog. There are ex-players and ex-referees being given air-time who I wouldn’t listen to in a pub. OK, there will be one or two who’ve done something in the game whose opinion you would take on board, but I’m on about every Tom, Dick and Harry."
Keane, whose 12-year spell at United was ended following his guest appearance on MUTV’s Play the Pundit slot when he allegedly criticised team-mates, is also irritated by the pressure mounting on Tony Adams, the recently-appointed Portsmouth manager, who he will take on on Saturday at the Stadium of Light.
"Somebody said to me Tony Adams has had a tough start," Keane said. "He has had a tough start. He’s played Liverpool away and a difficult game against Wigan at home. The average manager’s lifespan is going down and down again.
"I keep saying hopefully managers will be given an opportunity but the way punters are getting brain-washed every week, like a debate on every night after a bad result, it’s crazy.
"We’re on about league tables after a week, teams losing two games and it’s a crisis and that’s constantly being thrown into people’s faces.
"People are getting brain-washed so what you’ve got to do is not to get sucked into any of that nonsense and try and focus on your job, but it’s hard because people take notice of what’s been said."