Many USB TV tuner sticks include a legal, licensed copy of BlazeTV in the retail box. Best Free Alternatives to BlazeVideo HDTV Player
If you are trying to get a specific device working, let me know: What is the of your USB TV tuner? Which operating system are you currently running?
To ensure you are looking for the correct thing, it's helpful to see the core differences between the two services that cause this confusion:
Which (e.g., Windows 10, Windows 11) is installed on your PC?
Supports scanning and playing digital TV channels in high definition.