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.
By the eighth season of The Waltons, there were several changes made to the cast. Cousin Rose Burton and her two grandchildren, Serena and Jeffrey, were added, as was Ben's new wife Cindy. This eighth season episode takes place during Christmas 1943.