question about an old edtv plasma/monitor

[blueblood]

quick question fellas. I purchased an edtv plasma years ago(2004) when flat biggies where just coming out. Its only an edtv but i love it because it makes dvds look great, not all pixelated like my 52 samsung lcd. LOL

I have ran into a small problem. Up until last month, i had a cable box running to this plasma, but i had to cut back on some bills so the dish had to go. I now only have regular cable. Thing is, my plasma has no built in tuner, and also no rear coaxial input, so i cannot run the cable directly to it.

I was told that what i need is an "external tv tuner", run my cable to that and then run composite cables to the monitor??? if this is so, i guess my question is answered, LOL but if not please help me with this problem. Also, what tv tuner do i buy and where if this is all i will need, thanks guys