The Team USA star needs only three more medals to become the most decorated Olympian of all time, but will find it difficult to match his haul of eight golds at Beijing in 2008.
In an interview with the Today show, Phelps said: "I've pretty much just been watching TV shows. I started The Wire, and I'm catching up on Breaking Bad. A little bit of pretty much just sitting around watching shows and movies."
Phelps also revealed how his Olympic accommodation is without air conditioning, leaving him and his teammates sweltering in the summer heat.
"We walked in and tried to crank the thermostat down, but nothing was happening all day and they told us in a meeting that we have no air conditioning," he said.
The lack of air conditioning is the latest problem in a shaky start to the Olympics, after the North Korean women's football team stormed off the pitch yesterday (July 25) when the South Korean flag was shown on the big screen instead of the North Korean one.
Phelps will kick off his defence of eight Olympic titles on Saturday (July 28), but will face stiff competition from long-time rival and friend Ryan Lochte.
Photo gallery - London 2012 Olympics:
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