I have always found comfort in the regualrity of these shows. It seems like Destination America cycles through them once or twice a month.
However, the program descriptions are not always updated. For example, before our trip to DLR last fall, I DVR'ed a program on DL, with a program description that indicated a date of 2003. However, the show was up-to-date from 2012 or 2013 on the all the changes in DLR, including Indiana Jones, WOC, and Cars Land, and it really got us excited for the visit.
Recently, I saw a bit of a WDW program that was appeared to have been updated with the new FL, so I realized that there may be up-to-date versions of the WDW Shows.
When I look ahead at the program guide for next week's show, I see two different program descriptions listed for shows with the title "Walt Disney World Resorts", so I am DVR'ing both. I am also DVR'ing the "Ultimate WDW" program as well, just in case it has been updated.