I don't know about the modern stuff at 1080dpi as it's been a long time since I tried displaying apc output o TV, but I'm guessing the same still holds true (I'm sure someone will correct me if this is just rubbish
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The problem is with the resolution....even at 1080 dpi that doesn't give you much deskspace.
Certainly way back when, using a tv was no good because the resolutions supported by graphics cards looked awful on a tv....the icons and text got all pixellated and jagged (it's to do with dividing the available res with the actual output res and if the two aren't divisible by nice round whole numbers, you get odd effects)
If this isn't true any more, ignore it....but if it is, (and still another, possibly better option even if it isn't still true) you may be better off with a screen, either a roll up temporary but portable one or a ceiling mounted pull down permanently installed one) and a decent projector.
The advantage is of course that projectors are small and portable so you could take the presentation anywhere with you (particularly with a roll up screen on a collapsible tripod) and that the screen display size would be much, much larger......the disadvantages are that you need to turn the lights to a bit dimmer in the room
I had a wall projector at one stage and playing Quake 3 online, projected onto a 6 foot wall space was pretty awesome
