Let’s break down the keyword. The is the official app store for Android devices. The suffix “Android TV” indicates this variant is specifically optimized for a 10-foot user interface (designed for remote controls, not touchscreens). The numbers 7.5.08 refer to a specific build released historically for Android TV OS versions based on Android 7.1 (Nougat) and some early Android 8.0 (Oreo) builds.
If your TV's built-in store is missing or you need this specific version, you can sideload it manually. Enable Unknown Sources Settings > Security & Restrictions google play store %28android tv 7.5 08 apk%29