Television and Home Theater

I have a samsung 46" rear projection model BL-P4663W  the screen is white with two black lines at the top going across the screen rest of the screen has alot of little black dots all over it, could the mirror be bad or what. need help please

I live in N.E.Pennsylvania where the temperatures get hot in the summer( 90s in July ) and cold in the winter ( 10 in Jan.) my Question is can I put my 32in. picture tube TV on my in closed porch there is no heat until I start up the pellet stove on a weekend when I would turn on the TV set to watch sports,will anything happen to the set.I have a 27in. flat screen out there now (picture tube) for about 3yrs. and so far it works will what do you think?

hi,

the only screen i can get on my tv is the menu.  i have had rainbow wiggly lines for the whole time i have owned.  zenith sent a repairman who noted my problem and arranged for a pick up.  they kept it a month and found nothing.  i dealt with it as it would go away in a half hour or sometimes if i turned it off.  now i just get rainbow wiggles and a menu and convergence on the menu cannot be selected.  it is grayed out and the cursor skips over.  zenith says sorry warranty expired!  any ideas???