Sony offers LCD and LED tv screens with build in internet .module. Any experience? How big the screen can be and still have a ok internet picture?

Plasma is out, I think, LDC or LED?

Any hook up problems to PC or in my case simple acer lap top?

no should be ok mine is but i am in ireland no problems my one is a lcd hd

the internet content offered by Sony TV is customized depend on where you purchased the TV.

e.g. Sony LCD TV sold in China offer youku.com , tv.sohu.com (online HD movies) and other chinese services. Those TV sold in Hong Kong offer another set of local (Hong Kong) contents.

you should get Thai contents if you buy the Sony LCD/LED TV in Thailand

Connection to a PC should be fine via a VGA cable.