About years 3 to 5 of TNG. TNG was the most mainstream success "Star Trek" ever had, expanding the popularity of the Franchise exponentially and internationally.
Most definitely. The groundswell started with ST IV and seemed to peak mid TNG. Also, "Doctor Who" went on hiatus about this time and many ST clubs saw a huge influx of young, aimless UK and international Whovians who suddenly took to TNG because it was the only fresh SF game in town.
"Doctor Who Bulletin" turned into just "DWB" and then "DreamWatch Bulletin" to soften the blow.