Best budget screen for watching lectures?

If you wanted the biggest and best budget TV you could get solely to watch lectures (occasionally very poor quality 360p ones) and be able to walk around or lie on a nice chair while watching them, what would you get? And ease of connecting/disconnecting a laptop constantly and have it work every single time?

http://www.amazon.com/s/ref=sr_pg_2?fst=asn&rh=n:172282,n:1266092011,n:172659,n:6459737011,k:television&page=2&keywords=television&ie=UTF8&qid=1430105722

Around this quality even sometimes


Sometimes much better quality like a powerpoint style lecture

Some things I'm afraid of
1. Poor viewing angles when I am walking around in the room while watching the screen
2. TV being broken after having it shipped to me
3. Biggest fear- difficulty and frustration in connecting and disconnecting it to a laptop constantly.

Some TV's I have connected a laptop into have been headaches for me I have to sometimes figure out how to select monitor mode and sometimes it will work, sometimes it wouldn't.

There was a TV/monitor in my college dorm. I connected a laptop via VGA. Sometimes it would work perfectly, sometimes not at all. Fairly new TV. It had a long VGA cable out of it and was clearly meant for connecting your laptop to it.

 

I use an older projector with a VGA input, and a 115" screen!!! I got the projector for $100 from a local refurbisher on craigslist. The screen I made, cost double then some the projector... But smaller pull down ones can be had cheap.

Initially, I had issues with hooking my Smart Home Theater system to a Panasonic Projector through an HDMI adapter. The PC connection worked fine, but the HDMI got confused and whacked the picture. Something about overscan. I exchanged with the local seller for a slightly better projector with higher resolution, works like a charm.

I am not sure if this would work for you, but it is amazing to watch movies on! And I do sometimes use it as a second monitor for photo processing and the like.