If you’re a sports fan, there’s a most un-harmonic convergence of things happening tonight.

There’s a St. Louis Cardinals playoff game on at 5 p.m. (TBS), the St. Louis Blues hockey home opener at 7 p.m. (FSM) and the Mizzou-Nebraska game at 8 p.m. (ESPN).

Not to mention that Grey’s Anatomy fans get a new episode at 8 p.m. on ABC and NBC is offering the big Pam-Jim wedding on The Office.

So tell us if you will be tuning in to any or all of these. Which one will the DVR take care of, and which one will you watch in real time? Or are you…

Today is Mark McGwire’s birthday. He’s 46, 11 years removed from the glorious, record-setting home run season of 1998 that helped revive Major League Baseball.

We remember those happy days, right?

The 62nd home run of 1998.

A full stadium, a battle for home-run supremacy between McGwire and Sammy Sosa.

Some of us may have replaced those happy memories with the not-so-good ones from 2005. When figures enmeshed in baseball’s steroid scandal got called before Congress.

And when McGwire uttered those now-infamous words: “I’m not here to talk about the past.”

So let’s talk about today. McGwire’s retired from baseball, financially set for life, so…

Unless you bury your head deep in the sand (and even then you might hear Mike Shannon’s voice) you know that today is Opening Day for the St. Louis Cardinals. The game is sold out, of course, and a few dozen people spent the night huddled in tents outside the stadium hoping to score tickets to today’s game against Pittsburgh — temperatures in the 30s be damned.

But take Opening Day and games against the Cubs out of the equation, and it seems like tickets will be easier to come by. The economy’s taking its toll everywhere, and baseball is no exception….