Yes personally I think the sig is definitely a compelling marker. Especially after the patch that caused them to not be completely random anymore. Plus the fact of time. I have had a static that I did not warp to last upwards of a week. If in fact it was active it would have had the normal 24 hour timer.
Interiors for The Waltons were filmed on Stage 26 and Stage 20 of The Warner Bros. Studio which was known during the original series as The Burbank Studios.
A. The series was filmed entirely in California on the grounds of Warner Brothers, the Angeles National Forest, and near the Kern River. The only exceptions were brief segments filmed in Schuyler, VA for A Decade of The Waltons. The house used was a Hollywood set based loosely on the actual Hamner home.