Originally Posted by dlplover /forum/post/19547564
Pioneer no longer is making displays and hasn't since 2008. Samsung, LG, and Panasonic are the only companies still producing plasma panels (some OEM 3rd party companies may be selling the above panels with their own frames and electronics inside). In general, CES in january is when new displays are announced, and April is when you start seeing them show up in stores... but it's usually a bit staggered. Most common/big seller displays show up first, and then the higher end/larger size/etc... models churn out over the summer.
But that's not a hard and fast rule. Some companies do things differently, and I'm sure if you're talking about LCD's there's new displays coming out all over the place year round just due to how many companies make them these days.