ADC to my HDTV?

So, I have a graphics card in my G5 that allows for a 2nd monitor. It's DVI and ADC ports. Of course Apple needed to make things a hassle by having their own Cinema Display DVI only. Now I'm stuck with an ADC port as my only option for a second monitor. Can I hook up my 19" LCD HDTV using this ADC port. Will I be able to do something like ADC to DVI to HDMI or something? Anyone work with ADC and HDTVs? My HDTV also has a VGA.

The only place I found on a quick search that says they still have them available is here

Read the notes, has a few monitors that it says it's not compatible with and would doubt that page has been updated in a few years.

Here's another.

thanks for the help.