how to watch TV online can be setup a number of ways. But to do this will require an Internet connection and device with a web browser. Well start with an Internet connection first, since this is needed to do or watch anything online. For the home, a modem/router will be needed. Its best to have a dual-modem/router that allows both a wireless connection and wired (Ethernet Cable) connection.
Internet Connection: Modem/Router
Think Mbps (megabits per second) which is a measurement used to figure out how fast is ones Internet connection. Higher the connection speed, better the picture quality and overall performance. It allows watching a live TV channel online that has a large bandwidth, without experiencing buffering and playback issue. When comparing an Internet connection speed of 15 Mbps to 150 Mbps, the 150 Mbps would be the faster Internet connection speed of the two.
Contact any ISP (Internet Service Provider) such as Comcast, AT&T or FiOS to get their High Speed Internet rates. Or visit their website to see different rates for Mbps download/upload speed. Start with 15 Mbps or higher. But keep in mind, higher the number of Mbps the costlier it gets.
Mobile phone users use 3G, 4G, 5G, and other data connections. The faster the connection the quicker it becomes to download and upload information. This same principal applies to any Internet-connect device for that matter, including a computer.
Investing in a fast Internet connection is most important. A slow connection speed can cause stuttering and buffering playback issues when watching a live TV program or on-demand movie online. During peak hours (7 PM 11 PM), when more people are online or sharing the same Wi-Fi network, can slow down the ones connection speed.
When adding more devices to ones Wi-Fi network at home can slow down the connection speed. Having more Internet connection speed is ideal when connecting more devices to the same Wi-Fi network.
Device with Web Browser
Any Internet-connected device with a web browser can be use and there are many web browsers that can be use. Google Chrome is at the top of the list, which is popular among many devices and users. A computer desktop/laptop can use other web browsers (Internet Explorer, Mozilla Firefox, etc.)
Some of the devices with a web browser that can use includes computer, tablet, smartphone, smart TV, Chromecast). An Internet-connected smart TV with Google Chrome browser can surf the web and watch live and on-demand streaming content, just like a computer. No other device is needed in this case. With a dual modem, just connect the wired Ethernet Cable to the smart TV. Use the wireless (Wi-Fi) network to connect additional devices.
For instance, a computer, smartphone, and wireless keyboard, all can be connected wirelessly to the same modem/router (Wi-Fi network). Those devices can move around the household while watching a live TV program online. This is the way to watch TV live online from any location inside the home.
Most people have computers, either desktop or laptop, which happens to be the best streaming device. The reason is a computer has no restrictions or limitations. It can access any web TV/VOD website, download any TV software and use any 3rd party web-based TV/VOD service to watch anything online. A computer isnt restricted to TV/VOD apps to watch streaming content online.
The best way to watch TV live online is using what you already. A device with web browser and Internet connection. Get those two right and there will be lots of enjoyable TV days/nights. Use a computer and get unlimited access to streaming content online. This device can also be connected to any TV (HDTV or Smart TV). The easiest way is using an HDMI cable where one end connects to the computer HDMI port and other end connects the TV HDMI port.