It depends where your input source is located.
I presume you have a Pc that you can connect to a projector, and that is what you are using as the picture display.
If so simply buy a DVTB tv card for your pc that will slot into a x4 or x1 Pci-e card slot of the motherboard of the pc.
You can buy the cards from about £100 with 5.1 surround sound, and dolby digital 3d surround
The cards can receive 1080p HD signals and output at 1080p screen resolution.
Via Hdmi output,
The only problem I can see is that most of the TV cards come with a remote control and an Ir sensor to change channels ect so the Ir receiver cable would have to be long enough so it is in line of sight to work Kaytee.
Bellow is a link to ebay where you can find the...