No web browser built in. It does have apps like Facebook and hulu ect. but no actual browser software.
#4 Is the HDMI cable included with TV or enhanced delivery or do I need to order and have on hand for enhanced delivery?
No HDMI is included with the TV, I got called in to work, so I can't vouch for the enhance delivery. My guess is they bring one to test, but not one to leave behind.
#5 Does anybody have the TV in a heavy natural lit room? Wondering if too much glare/ reflection.
Ours doesn't have a lot of reflection or glare. We have a large window in room and it is fine for us. For the record this tv has the best picture we have ever seen.