I have lost the picture and instead get ypbpr:2 on the screen.

You are likely replying to a different problem, but yes, bad capacitors are responsible for many failures these days in a vast amount of electronic circuits.
Most commonly, 1000uF and 3300uF capacitors seem to be going.
Ordering these parts from Digi-Key they are 73 cents a piece, and shipping seems to be a flat $8 charge, but they arrive the next day. You are likely replying to a different problem, but yes, bad capacitors are responsible for many failures these days in a vast amount of electronic circuits. Most commonly, 1000uF and 3300uF capacitors seem to be going. Ordering these parts from Digi-Key they are 73 cents a piece, and shipping seems to be a flat $8 charge, but they arrive the next day.

SuperTech-11, I stand corrected. I posted that before I tried to repair my own Hitachi P50H401 50" HD PLASMA TV leading towards finding one or more blown capacitors. I opened her up, but didn't find any? About a year or so ago, I was watching a DVD movie and heard a loud, "POP" sound, and the screen went black. I turned everything off, surround sound, DVR, DVD and tried to turn the TV back on, but I'll I got at start up was a red light first, then a blue light that kept on blinking for four times then stops and then it starts blinking all over again. What can I try next? Signed, a humbled reader. SuperTech-11, I stand corrected. I posted that before I tried to repair my own Hitachi P50H401 50" HD PLASMA TV leading towards finding one or more blown capacitors. I opened her up, but didn't find any? About a year or so ago, I was watching a DVD movie and heard a loud, "POP" sound, and the screen went black. I turned everything off, surround sound, DVR, DVD and tried to turn the TV back on, but I'll I got at start up was a red light first, then a blue light that kept on blinking for four times then stops and then it starts blinking all over again. What can I try next? Signed, a humbled reader.