How are you doing it?
On the TV, I bring up the Roku home screen in which I can connect to video streaming services such as YouTube, Netflix, Amazon Prime, Hulu, RightSide Broadcasting, etc. Hundreds of streaming channels are available through the Roku platform. Many of them free. Some you pay for. But you decide.
In recent years I find myself streaming directly through my laptop devices more and more so the large television screen in the den is pretty much turned off most of the time now.