Nah, I run my ole 19" zenith concierge with a home made S-video to composite adapter and it looks great.. Aside from the magnetic spot on my TV..
this was the setup I had at my fathers house with the home made S-video adapter:
That was just before i got my logitech keyboard, I pulled that beat up blue thing out of the scrap bin when I worked at PC city.
EDIT: The TV and one of the monitors (Think the far right one) where running off of an old nVidia MX4000 64MB 32b PCI GPU, the middle one and one on the left where both on my 256mb 128b nVidia 7600GT PCI-E x16 GPU. I still have the gig of RAM and CPU from that machine. There in my current desktop, hard drive too. I haven't had money to upgrade for several years.