[drh4683]

You know you have a nice set when you get the "clean dust" smell as it warms up. Clean dust meaning that its a light grey dust that will simply blow off clean with no residue. Yes, a vacuum and small paintbrush work best. I get the most of it out with the vacuum then hook up the hose to the exaust end of the vacuum and blow out the rest. I have an old 1963 electrolux model G with the reversable hook up so I can use the vacuum both ways which makes it very handy.
I no longer use compressed air as you will blow labels off the chassis and or destroy them if they are dry and brittle.
Look forward to hearing the progress of this TV.