• I'm having the same problem with the same TV. And it all started about a week after I switched out my regular cable box for a DVR cable box. Both are from Cablevision. Too strange to be a coincidence. I'm thinking of trying a repair, but if it doesn't work out, then it's a large flat screen TV.
  • If it's related at all to the blinking power light on the Toshiba mentioned mentioned at this link, looks like it's a repair job that's called for -

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