"when is to best time to buy a tv"?

When you have enough money.

When you need one.
Like when the old one die.

when they go on sale

New models come out quickly and prices fall subsequently, like HD TV or palsmar (sorry for the spelling) were at a very high price when they just came out to the market but now they are much cheaper. So it depends on what kind of models you want to buy and at what price you want to pay.

When You get bored from your (BV) Wife -:)

Now.

Best time is the day after Thanksgiving and 60days before Superbowl Sunday. I say 60days because BB has a 60 day price guarantee. So when they have that killer sale on the set you bought you just go in with your receipt and get the difference back
Right now (X-Mas Time) comes third.
If you get the right sales person you might be able to get a sale price that was close to black Fridays prices.

Also anytime six months from now regardless of when now is