I just notice that Decades is running
The Mod Squad pilot movie today, and onr of the shooting locations happens to be Greystone. It's on right now (though the Greystone part won't be on until much later) and then again at 3:30AM ET. The ep also happens to feature Addison Powell.
However, in case you miss both showings, check out this topic from '14 when the pilot had been shown on MeTV:
DS Meets The Mod Squad
The topic features several screen caps.