I have a 4K Directv ready TV. Does using that have all the features of a regular box?
Actually the tv does have what it needs, but like you said you need a Genie too.nope
its a client, like a mini. it need a genie to work
No 4K channels in the traditional sense, such at ESPN, TBS, etc. They have two dedicated 4K channels which show various programs. From directv.com:
Channel 104
Watch a variety of documentaries, travel shows, original series, and more all in stunning 4K resolution.
Channel 106
The Best 4K Entertainment Experience Available. Get Original shows, hit movies on demand, and the most live sports in 4K – only on DIRECTV.
Don't forget about Channel 105 which is 4K PPV. This is where the 4K movies that are on PPV are at.