If you have never restored an old tube radio or TV before, I recommend that you
not do this as a beginner's project. Better to get a cheap 5-tube 1950s radio and practice on that.
If you go to the Restorations section of my website, you can read about various TV restorations and get an idea of what's involved. My current project is the DuMont RA-103.
http://antiqueradio.org/restoration.htm
If you're determined to start with this project, this article has some basic advice about replacing capacitors:
http://antiqueradio.org/recap.htm
Be careful !!! Tube TVs have high voltage that can kill you.
Phil Nelson
http://antiqueradio.org/index.html