Fiber-Optic TV is one of the newest types of television technology. Light travels through glass or plastic cables to deliver all of your favorite channels. These cables are much stronger than the copper cables used for cable TV, and they can transmit data across further distances while still maintaining the same high quality picture and sound. Fiber is typically the most reliable option, because the connection isn't affected by power outages or bad weather like cable and satellite TV are. Many fiber TV providers offer bundles with fiber internet, which is extremely fast. One of the downfalls to fiber television is that it has limited availability because it's a newer technology, so it may not be offered in your area. These fiber cables must also be installed perfectly by a professional to function properly, which is part of the reason that availability is limited. Fiber TV tends to be a more expensive option, but its incredible HD quality and reliability are worth the price!
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.