A:AnswerBoth. Consumer Reports has a good set of pics of the back of the unit. It has 2 USB and 2 HDMI "sideways" and 2 HDMI, coax, ethernet, optic, etc "straight out" and further away from the edge of the unit. Therefore the sideways ports are closer to the edge for easier access. I have mine wall mounted and not on a arm so I have my "never to be moved" connections on the straight out ports and the transient plug-ins on the sideways.
https://www.consumerreports.org/products/lcd-led-oled-tvs/lg-oled65b7a-393174/overview/
A:AnswerAll the LG OLED has the same panels from what I have read. The differences in models is in cosmetics and/or features. But as far as the screen (picture quality) goes, they will all be the same.
I believe the C7 has a different stand, and may have some other options if you run speakers from your TV. The more expensive models has the full glass trim and then the top has built in sound bar. Its all about what extra bells and whistles you want.
A:AnswerClick on the specifications area, then on the drop down menu select dimension and it will give you the measurements with and without the stand.
Dimension
A:AnswerThe TV stand is 22 inches wide. So if that fits on your swivel stand it might work. I would be sure the swivel stand is VERY stable. I believe it would be very difficult to mount this TV without using the TV stand it comes with. The TV stand may be eliminated if you have a method of fastening the TV to the swivel stand.
A:AnswerYes... every input can be monitored from the main menu screen... you can even hook up a cheap in door HD over air antenna and watch a bunch of stuff free, provided you live close to a metropolitan area.