Television and Home Theater

I have a Samsung HCN553W, and after reading a few of the other threads, I am fairly certain I have a convergence problem.  The screen looks as though I need 3-D glasses to watch it, and the top of the screen and the bottom of the screen are bending toward the middle at the center.  I believe this is called pin-cushioning.  I went to Samsungparts.com and it said the convergence board was no longer available.  Anyway, I am not experienced with this type of stuff, but I am a quick learner and can usually figure this stuff out with directions.  I haven't

I own a 4 year old Mitsubishi WS55511 HDTV.  My problem occurs intermittently.  The picture will flicker off for a few seconds, 5-10, then flicker back on for a few seconds, then off, then on, etc.  The sound will always be on.  This problem occurs randomly....days will go by with no problem and then the flickering will start again.  When the flickering picture occurs I get a message on the screen that says, "SAT 1080i, Standard.      Check connections or power.

I have a Sony Triniton made in Sep 2001, model KV35S42. The stand-by bulb light is blinking all the time (more than 50 times), does not have sound or image. Could anybody give me any ideeas what can be wrong?

Thanks.