Yes, you can generally use an HDMI hub on a TV. Take the corresponding HDMI cable to connect the HDMI ports on both the hub and TV, then you can get a connection between your TV and various other devices connected to the HDMI hubs such as your gaming consoles, laptops, and more, enhancing versatility and providing a seamless and convenient entertainment experience. 

You can add more HDMI ports to your TV by using an HDMI hub or switch. Simply connect the HDMI hub or switch to one of your TV's existing HDMI ports, and then connect multiple devices to the hub's additional ports. This expands your TV's connectivity options, allowing you to easily switch between different devices without constantly unplugging and re-plugging cables. 

Yes, you can use some HDMI hubs for TVs with both standard and HDR content. For example, Anker 364 USB-C Hub (10-in-1, Dual 4K HDMI) comes with two 4K HDMI ports, supporting you to stream or mirror content to a single device in 4K@60Hz or hook up two displays to both HDMI ports in 4K@30Hz. So you can fully benefit from the enhanced picture quality and dynamic range for different needs. 

Yes, you can use an HDMI hub with older TVs, provided the TV has at least one available HDMI port. Then you can connect the HDMI hub with your TV to link with multiple devices and expand the TV's connectivity options. However, ensure the hub's specifications match your TV's resolution capabilities for optimal performance. 

Absolutely, using an HDMI hub for your TV can significantly enhance your home theater setup. It enables seamless connectivity for multiple devices like gaming consoles, streaming devices, and sound systems, allowing you to streamline cable management, simplify switching between sources, and optimize your home theater experience.