The early systems simply received weak (broadcast) channels, amplified them, and sent them over unshielded wires to the subscribers, limited to a community or to adjacent communities. The receiving antenna would be higher than any individual subscriber could afford, thus bringing in stronger signals; in hilly or mountainous terrain it would be placed at a high elevation.
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Netflix molded itself into an alternative to cable early on. One way the company accomplished this was by frequently acquiring rights to popular TV shows. So you’ll find all past seasons of “The Walking Dead” and “Better Call Saul” from AMC there. You’ll notice that seven seasons of “Shameless”, a Showtime produced series is there as well. With a broad selection of genres, Netflix aims to be all things for most people. And currently it’s doing a better job at it than any other streaming service on the market. You can even try out Netflix free for a month. The most basic plan is $7.99 per month. A subscription with HD quality costs $10.99 per month. Ultra HD (4K) will cost you $13.99 per month. You can try out Netflix free for a month. 
You probably want amplification, unless you're living next door to the local broadcast tower. They don't make the signal stronger coming in the house; they make an already low signal strong enough for the TV tuner to use. Even some of the flat antennas have amplification options; but amplification ups the cost. Setup is easy, but you'll have to play with the antenna position to maximize reception—just like fiddling with rabbit ear antennas in the 1970s. Some outdoor antennas can work from inside if they're up high—say in your attic—if there isn't a lot of obstruction.
Can you please help me. I live in Mexico. I have a Shaw box and get cable from Canada. They are changing so I need to change. I have no idea what to do. Some people here have roku, others netflix. I have a JVC and Samsung purchased in Mexico. I like to watch the British dramas Shaw offers on my 5 PBS channels. I also watch HGTV and vet shows. I have read a lot but am confused. What do I do?
One big advantage Roku offers though is a choice of four models ranging in features and price, from the $50 Roku LT to the faster and higher resolution $100 Roku 3. With over 1,000 channels, Roku has long had an edge over its Apple rival in terms of content, but unsurprisingly, many channels are of limited appeal. While it lacks support for iTunes, Roku counters with the Amazon Instant video store (unavailable on Apple TV). Roku also offers both a PBS and PBS Kids channel.
The question of "when does it make sense?" can easily be rephrased as "how much money can I save?" and one of the biggest factors will be the price difference between combined internet and TV service or just internet. These are also the options that vary the most widely based on where you live, and the availability of promotions or contracts that can keep prices down for a short time.
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