A power malfunction has shorted the shot clocks in Toronto's Air Canada Centre, and backup shot clocks weren't working fast enough, so this is how the shot clock will be handled for the foreseeable future.
The PA announcer, on the right there, is calling out the seconds at 24, 10, and count down 5, 4, 3, 2, 1. At the of the 24 second clock, he yells "horn". HORN:
The 2014 NBA Playoffs are off to a fantastic start.