okay. I went through this 2 yrs ago so some of the tech may have changed, and I'll tell you what I learned, but it gets crazy complicated and keeping in mind I'm not saying you or any other members couldn't have different/better luck AND this all depends on each persons expectations in terms of end game results......
1) If you're just looking for local/network programming and you live within 20 miles ish of the point of broadcast, AND the terrain/obstructions are relatively flat/minimal, you can do the antenna thing. Depending on your situation, you can go w/ a indoor digital unit and scrap the tower. I'd suggest a powered unit (you have to be pretty close for the passive type to work well). Keep in mind your signal quality may be at the mercy your structure and/or weather conditions at times.
2) If you're going the streaming route, (Amazon, Netflix, etc.) the next step is broadband internet connection. If you're completely done w/the cable company you basically have 2 options, phone line and satellite. In most cases neither will give you the speeds the cable provider can AND even w/cable or phone, the speed varies wildly depending on age of cable design/system (inside your home-to source and at the pole) or w/satellite, you're back to weather/obstructions. If you haven't cut the cord yet, and you have home internet w/them now, there's an app you can download to check your connection speed. VERY IMPORTANT! The faster the speed inside the house, the fewer buffering problems you'll experience. Here in OH I pay $75 a mo. for cable internet. I chose a speed pkg 2 tiers up from lowest ($55 a mo) available to avoid the slow internet/buffering issues. I don't have any problems w/either.
3) Your equipment inside the home. This is where it gets a little tricky. The greater the number of devices used the greater the chance of slowing down the speed becomes. The general consensus in the industry is Smart TV/combination (1 unit) modem-router only. Again, fewer devices=faster speeds. Some things to consider:
A) If you have a Smart/4K TV great, you're golden. No Smart TV...you have to add a TV stick/ "dongle" and there are tons of choices (google chrome, fire stick, Apple TV, etc), but this adds another device. I don't use one so do the research for your needs. If you're shopping for a new Smart/4K unit I'd suggest the LG OLED model. They're pricy, but the picture is ASTOUNDING.
B) The 4K thing. It's here to stay, (until the next broadcasting upgrade) and eventually it will all be in this format. This is important to know because as the volume of 4K broadcasts increase, the more bandwidth gets used in ANY providers system. A periodic speed check inside your home to make sure you still have the speed you're paying for will be a good idea because of this AND, the more customers that are added upstream of you, the more demand on bandwidth (keep in mind, ALL providers have fine print in their contracts that allows them a "fudge factor" of up to 30% LESS, I think, and still charge you full price for the service).Its BS, but there you have it.
C) Modem/Router. Buy a "all in one" unit. Again, separate units=more devices, and separate units from different manufacturers can cause even more speed problems because they don't "talk" to each other nearly as well. The Arris Surfboard's are quality units (I have one) and are usually ranked high in reviews. Just make sure to buy a Dual Band/802.11/3.0 DOCSIS w/good speed capability. It will keep up w/changing conditions down the road. You're looking at the $200 to $250 range for one of these. DO NOT get suckered into "renting" a unit from your provider. These are designed to just barely do the job and to be money makers for them.
I could go on and on. It's crazy, but not that much different from spec. out a good drivetrain combination for your car. You just have to learn a new language and do the research, because if you skip a step or try to go the "cheap route" the end result may be garbage. Hope this helps. Good luck. Cheers