Your TV may support HD, but the satellite service doesn't support HD very well at all, and even when it does, it eats up so much data that it's not a good idea to use it.
You're free to cancel the service at any time, but you will have to pay the cancellation fee as stated in the contract. You can also work with the mods here to improve your viewing experience, but you need to also accept the limitations of satellite internet technology. It is not the best technology for streaming, and even though you can stream successfully with it, you also have to be aware of and plan for the limitations.
*I am not a Hughesnet employee or representative. This is a customer-to-customer tech support community, and I am a customer.
If you are attempting to stream in HD, please be sure to turn off, or snooze, the Video Data Saver. If you would like to troubleshoot the issue, please start a new topic in Tech Support, as this section (myAccount and Billing) is not for troubleshooting.