If you were a child of the 1980s and the 1990s, “Family Matters” was your go-to show in the two-hour TGIF lineup on ABC. For two hours, families all over the country were entertained by shows like this one, “Step by Step,” “Dinosaurs,” “Boy Meets World,” and of course, “ Full House. ” Originally launched as a spin-off of the largely-forgotten “Perfect Strangers,” “Family Matters” launched the careers of rising young Black talents. One of those talents was none other than Jaleel White, whose rise to fame as “Steve Urkel” (and, later, his counterpart “Stefan Urquelle”) follows him around almost to this day. But believe it or not, the show may never have become the cultural touchstone it is today if the producers had stuck to the original plan. White’s character was originally meant to be a one-off character, but when he stole the show in the first season, the producers shifted the focus. “They kind of had to accept that I was there,” White said of the cast, to E! News. “ That was a...