data-mm-id=”_nuwglqk29″>Do you people want to know the horrible truth or do you want to see sluggers sock some dingers? If your answer is the latter, ESPN2 has you covered. On March 26, originally slated as Major League Baseball's Opening Day, the network will show an eight-hour Home Run Derby marathon beginning at 6 p.m. Contests from 2015, and 2017-2019 will be pulled back, back, back from the archives. That is a lot of tape-measure blasts and kids falling down after misjudging the carry of a fly ball. Since it's on television, people will watch it. They enjoy homers. But this morning, I'm wondering if there's a niche content opportunity down the line catering to purists like myself. Surely with all this downtime, we can get our best tape-cutters on the project of…