Wdym the TV doesn't work anymore? You need to plug it in. Also make sure custom content is enabled.
Viewing post in Voices of the Void 0.8.2 feedback
You can't have multiple TVs of the same type anymore, additional ones just don't function. You can have a medium TV and a Plasma TV, but not 2 Plasma TVs.
You could originally have multiple TVs of the same type, but the extra TVs were extremely buggy and basically non-functional, so they now simply just removed the ability to use multiple of the same TV.