Their laptops have tremendous numbers of mechanical failures. Their eReaders are slow, have glare, and have serious usability issues -- e.g. the page turn buttons are located in a spot where you can't comfortably press them. They bought Minolta, and ran it into the ground -- they've been promising a successor to the a700 for close to 5 years now without being able to ship. The lower-end cameras are innovative, but have serious, serious usability issues. The Minolta 5D was a wonderful camera. The early Sony successors copied and improved on it (a700 was the most usable camera ever made -- and the only one with a useful auto mode). The current ones made a new, broken interface. The support is gone -- warranty issues don't get fixed, and if you buy from Sony direct, heaven help you if you want a return.
Your TV and Blu Ray aren't bad, but a bit overpriced and slightly lower quality relative to the competition.
But that's not the point. 20 years ago, Sony was like Apple or Trader Joes. You couldn't go wrong buying from them. The quality was spectacular. Sony products didn't break. Today, you go wrong buying from them 95% of the time. 5% of their products are market-leading. They ship known defective products. It's a very different company.
In terms of bringing gaming to the masses, you're thinking of the Nintendo, first with the NES, and many years later with the Wii.
