ESPN has gone through many pairings and approaches trying to build a pregame show during its 18 seasons broadcasting the NBA. This time it’s using a successful daily show. The Rachel Nichols-led “The Jump” has been a daytime hit since debuting four years ago and is going primetime. It will lead off ABC’s Saturday night package, which begins with the Los Angeles Lakers visiting the Houston Rockets. “To get the trust of ESPN to do something like this feels good. It’s not just me hosting pregame, but have the whole feeling and ethos of ‘The Jump’ from games,” Nichols said.