#1 How well would this TV work when used as a computer monitor for viewing webinars?
This can not be used a standard computer monitor as it does not have that type of connection. If you are connecting to a machine that has HDMI, then it would work. I watch my standard DVD's via my laptop by HDMI and the image and sound is fantastic. The high refresh rate of 120hz would be a great fit as a monitor, but only if your are connecting via HDMI.