Touch Screen Whiteboards

This kids are doing this in school, how can they come home to a dumb tv?

http://smarttech.com/us/Solutions/Education+Solutions/Products+for+education/Interactive+whiteboards+and+displays/SMART+Board+interactive+whiteboards/800+for+education

http://www.guardian.co.uk/classroom-innovation/bett-2011-review-ict-schools-technology

http://www.tekpanel.com/digital_whiteboard_system.asp

http://owaychina.en.busytrade.com/products/info/1440918/Interactive-Electronic-Whiteboard-Touch-Screen.html

http://cybertechnology1.blogspot.com/2011/02/touch-screen-digital-whiteboard.html

http://www.prodisplay.com/front-projection-touch-screens.html