Blue and green bulbs look like they have sawdust in them

Tubes need to be removed from set. Take off front lens with 4 screws, then remove the glass circle. Has a gasket, becareful. Do this over a sink. The fluid is a clear anti-freeze. Clean inside with Formula 409 and paper towel. Rinse with water and dry. There is a plastic expantion chamber on the side. Pull that out and clean it too. Put the tube back together. Note where the wingnut was when you took it apart and oriantate the lens to go in the same way. You can use a turkey baster to refill the tube through the expantion chamber opening. Fill it up as much as possable. Put chamber back on. Put tube face down for awhile and check for leaks. That round gasket can be reused sometimes, but check it first. Then put it back together and that's it. You'll have to unplug the board on the end of tube and the ground wires. Then unplug 2 seperate plugs...one for the yoke and the other for the convergace. Make sure you mark the wires you take off and the way the tube came out. Everything must go back the same way it came out. Fluid can be purchased at MCMelectronics.com Only need to do blue and green. Red never goes bad. Do one at a time. That's about it.