Not all smart TVs are eligible for Peacocktv.com/tv . Peacock's website has a list of supported devices. The list of supported TVs includes the following main categories: Android TV, Apple TV, and Roku smart TVs. 

• Android TV: Supported Android TVs such as Sony Bravia and set-tops including NVIDIA Shield operating on Android 5.1 and newer are compatible with the Peacock app.
• Apple TV: Fourth-generation and newer Apple TVs running tvOS 13 or higher.
• Roku TV: Roku TVs are supported, as are a range of Roku streaming devices, including Roku 2 4210X, Roku Streaming Stick, Roku Express and Express+, and Roku Premiere and Premiere+.
• LG Smart TV: Models with LG WebOS 3.5 and higher.

For more details     Peacock.com/tv