@Boonkiat0 I am very sorry this happened to you. Amending your listing so that the TV reception issue is made very clear to guests will help protect you in future should you receive a grossly unfair 'Overall Experience' review and have to ask Airbnb to help rectify the situation. For example, you can write about the poor reception in your listing description and also in 'Other Notes'.
Sadly, Airbnb's review system is extraordinarily 'guest-centric' and at times inarguably unfair to competent, committed, hard-working hosts, including Super Hosts. It sets us up to do things like refund a complaining guest or offering them gift cards and other things in hopes they will not leave us a bad / unfair / retaliatory review.
After only 10 months as a host (and 9 of those as a super host) I have come to a place of peace and acceptance around the possible eventual loss of my super host status. I know that I offer an excellent rental experience and I also know that some guests will review in a manner that may cause me to feel it was unfair. This can be most disheartening. But I am learning to not care about holding on to this supposedly beneficial status - And this is getting easier and easier because there are actually very few benefits that I can see to being a Super Host (we do not rank higher in search results, for example), and there is a tremendous amount of extra stress due to fears of a less than five star 'Overall Experience' review that could deprive us of our Super Host badge.
I don't know about you, but I have had only one guest out of over 70 that even knew what a Super Host was, and no guests have used the Super Host filter to find my listing that I am aware of, and Airbnb does not appear to be marketing Super Hosts nor do they appear to be educating guests on who and what Super Hosts are and the standards they must adhere to; and now it is all about Airbnb Plus so who cares about us much now, anyway?
I run my listing now as a professional business. I do my best and offer my best to guests at all times and let the rest take care of itself. With the new standards being rolled out this July, many Super Hosts will be losing their Super Host status due to the fact that a bell curve is being used, versus a weighted average. Which means most of us sooner or later will fall below the required 4.8% rating (just one one star Overall Experience review could be deadly under these new rating methods, for example).
I can do my best to sail my ship, but I can't control the weather, winds, or sea. Sometimes there is great relief in simply letting go...