I was at GnT Stereo in Lancaster last week and they still have a Runco CRT set up in their main theater room. The last time I was in WeeBee Audio they had a CRT also, but that was last year. You might want to call them and see if they have any DLP's set up.
I don't know of any other places worth mentioning in Lancaster.
I have seen the GnT's Runco display set up with the martin logan speakers a while ago, totally amazing. Totally amazing price too. I use to go in there all the time, but they have changed all their sales people and it not as fun anymore.
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