first of all. if you have ONT without wifi, that's not a problem. you can use router to extend your LAN and use HD box or JoyAPP if you TV supports it.
secondly, all the channels and features of JoyApp are same as HD BOX. means all the channels are same. every thing is same.
third. there are about 350 channels. How can I note one by one and write them for you.
I will take pictures of the categories tonight for you to have an idea
or
you can ask about any specific channel and I will tell you whether its there or not.