As far as I know, MLB initially was using saliva tests which they processed at their own PED lab. Because of testing delays at their own lab, teams were grabbing any lab they could find to process their own tests.
I'm pretty sure the NBA and NHL use nasal swabs.
I think the other leagues are using a different kind of test that's more accurate. MLB was too busy squabbling about dollars to bother properly securing the testing capability.
Yeah. That game was magical. Verlander's no hitter against us was amazing. The bastard was throwing 101 to 102 in the 9th inning. Randy Johnson's perfect game at age 40 was fun. Roger Clemens had a high strikeout game for us that was amazing to watch too, but I can't remember the exact total. 18 maybe? Roy Halladay's near no-hitter in his second game. Halladay's 10 inning, 99 pitch game. I think those are the ones I remember best.
Do they need to be that different though? I mean, you don't need stands or anything. Go buy a big farm or two out in the middle of nowhere, build a whole shitload of fields, and have at it. Instant bubble. If players don't like it, they can opt out.