Tate fought with then-Philadelphia County District Attorney Arlen Specter over responsibility for the construction of the roof, and the damage was repaired. The 76ers moved their home games to Convention Hall and to the Palestra, but neither of those arenas had ice rinks at the time, and there were no other NHL-quality sites in the Philadelphia area. Thus the Flyers hurriedly moved their next home game (against the Oakland Seals) to Madison Square Garden in New York followed by a meeting with the Boston Bruins played at Maple Leaf Gardens in Toronto before establishing a base at Le Colisée in Quebec City, home of their top minor league team, the AHL Quebec Aces, for the remainder of their regular season, marking the first NHL games in Quebec City in over four decades, and years before the Quebec Nordiques joined the NHL. (The roof was repaired in time to permit the Flyers to return to the Spectrum to open their first Stanley Cup playoffs against the St. Louis Blues on April 4, 1968; the opening faceoff came just as the assassination of Martin Luther King Jr. was transpiring in Memphis, Tennessee.) Similarly, in 1993, the Flyers played a day game against the Los Angeles Kings during a blizzard. A piece of flying debris smashed out one of the concourse windows, cancelling the game just after the first period. In the 1970s, the venue's location near Broad Street and the reputation for fisticuffs that the Flyers had developed led to the nickname "Broad Street Bullies." A plaque inside The Spectrum stated that it held the world record for the fastest conversion from Hockey to Basketball. The Spectrum, along with the Met Center and The Forum, was one of the first sports arenas to have a scoreboard with a messageboard. Furthermore, the messageboards on the Spectrum scoreboard were the first dot matrix screens in pro hockey or basketball, capable of photos, animation, and replays as well as messages. This was replaced in 1986 with ArenaVision, which consisted of six rear-projection videoscreens at the top and a four-sided American Sign and Indicator scoreboard at the bottom. Inside the videoscreens were General Electric projectors located away from each screen. Seating capacity Flyers and 76ers' championships and All-Star Games hosted The Flyers won their first Stanley Cup at the Spectrum on May 19, 1974, defeating the Boston Bruins, 1–0, in Game 6 of the Stanley Cup