You are basically looking for a unicorn.
The task at hand is to convince your boss that this project requires $ to achieve good results, and requires more than a single device to do it all well. A single 32" 'Smart' <ahem> HDTV won't do what you need. Adding iPad or (Apple OSX) screen mirroring to the mix means you need the $89 AppleTV and/or a Macbook with adequate hardware/software specs. PC/Windows screen mirroring is it's own separate problem to solve, if you guys have the typical office spec Lenovo Thinkpads (etc.). FWIW, I have switched some of my own work projects to Apple/iOS devices to be able to dial in folks working in front of a 90" Sharp LED. Adding the AppleTV has made this a painfully easy task since the more pedigreed folks running iOS 7 on their iPhones can also quickly connect and correct all my mistakes ;).
Since many laptops include optical drives, you can just as easily eliminate the built-in DVD requirement. And there's also the $30 DVD player you could just as easily bolt in back of the display
What sort of laptops/hardware will be sending along feeds to this equipment(?) That's at least a small starting point so you get the task solved correctly.
I have been tasked with sourcing a ~32" tv for my company to use at exhibitions and during meetings in the office. My chairman has asked that it be possible to:
Connect via wifi to computers on the network so that it can mirror the display on any given computer at any time
Play from a USB input
Connect via wifi to an iPad (although this may not be possible as we'd rather not shell out for Apple TV).
I have done some research and found numerous screens that boast the relevant requirements (Wi-Fi, USB etc) - however, I have become rather confused at exactly what we would need to allow the picture from one device to show on the screen via wi-fi only, or even if it's possible at all - is the wi-fi only for connecting to applets like Netflix?