All kind of manufacturers currently produce a television that is 80 inches. Visit a local best buy or electronics store and see what models they have available.
The television manufacturers that make a 30 inch LCD are the following: LG, Samsung, Sony and many more. You can find all the different companies when you walk into a tech store.
There are numerous possible examples of manufacturers that product 19 inch LCD televisions. Some of these manufacturers include China Suppliers and Best Buy.
As far as I know they do not make and 80 inch television with a built in DVD player at this time. Considering the amount of money that you would spend to purchase an 80 inch television I wouldn't recommend a combo anyway as there are just more functioning parts that have the possibility of breaking down. If the DVD player quit working you would have to replace the television instead of just the DVD player itself.
80
Almost all major TV manufacturers sell 40 inch HDTV's these days. This list includes Sony, Samsung, Vizio, Panasonic, LG, and numerous other budget manufacturers.
I would look for information on the best manufacturers for televisions. You could ask around at electronic stores and ask friends and family what they think and what kind of tv's they have.
Samsung makes 32 inch LCD TV's, just like most other HDTV manufacturers. You'll want to find the best deals on them by checking Walmart or Best Buy, since they sell the most HDTVs.
I found one at best buy for 80$ online
The largest television besides a projector screen can do all the way up to 70-80 inch televisions. Projector screen televisions are even bigger than this.
Screen size is measured diagonally in inches between opposite corners of the screen.
A 13 inch LCD TV varies in price depending on the manufacturer. This type of television sells for up to $400 from top manufacturers, but can be as low as $100-$200 when shopping at discount sites such as Amazon.
There are many different good brands of 42 inch plasma television sets. Brands such as, Samsung, Panasonic, LG, Sharp, and RCA all are good brands of 42 inch plasma televisions.