"The symptoms being experienced are not a failure of the TV, but are as a result of specification changes made by YouTube that exceed the capability of the TV’s

"The symptoms being experienced are not a failure of the TV, but are as a result of specification changes made by YouTube that exceed the capability of the TV’s hardware." Which changes? YouTube still streams H.264, and I can not believe that those TVs can not run properly the glue-code scripting, e.g. doing a check of "if old TV, then, use less fancy things". So as others comment here, it looks like an excuse.