Depending on your location you can watch TV. We have the stock Majestic TV it is attached to the 12Volt TV antenna. When we are at our home port we have local TV stations using the digital antenna. When we are cruising to different areas when we get settled we do a search for channels for the area. Sometimes we have reception sometimes not. For steaming we have a AT&T Hotspot LTE. If we are in a area with cell service this works great, Netflix ,amazon prime, showtime, any service we have with our at home TV service we have on the boat. We use Apple TV with the Majestic TV. I also installed a 26" Samsung TV in the Forward V-Berth it is 120 Volt but works well at anchor with the inverter. The smart TV receives internet from the Hotspot wifi and has all the apps down loaded so everything we watch at home we are able to watch on the boat. We must be in an area that has cellular service for streaming or Digital broadcasting reception. I have the Samsung attached to a splitter and it receives a signal from the digital antenna too. I also have a 3rd source for TV reception. I have a Cable plug in the cockpit. We use this if Cable TV is available at the marina we are staying at. Some marinas have cable TV at the dock. I have a switch to change both TV's from antenna to Cable.
Before we used the Hot spot we used our iPhones to do the same thing. Our unlimited data slowed down about mid month during boating season. We had service but it just got real slow at times and we could not always stream series or movies. After we got the Hotspot and pay close to 100.00 a month extra for it we have no issue. Nothing is for free anymore. We activate the hotspot during boating season. The iPhones work fine as a hotspot but make sure you unlimited data doesn't have a clause that states after a (X amount of data used )your service may be slowed down during prime hours. Our AT&T service contract did that. Steaming uses a lot of Data.