here is a related question for mounting a plasma. i want to mount my plasma in the basement but the wall is as follows; .5" dry wall,1" stud(a 1x2" spacer used between the drywall and masonry) and then the gray masonry brick. i figure the 1x2 is not strong enough to screw into and support the tv, so i would have to go all the way to the masonry brick. Any suggestions on what to use? the tv will be flat mounted.
You could do a ceiling mount also.
To answer your question:
The best, and easiest is to use Tapcon bolts.
You can find them at the Depot of Lowes. Easy to finf, they are blue.
They come with a drill bit, so that the bolt will make it's own threads into the block.
Second choice:
I would use four large toggle bolts.
If the mounting bracket allows, try to put the holes right through the 1/2 inch furring strip, and into the block.
Setting a concrete anchor in hollow block doesn't always work the best. The anchor may drop into the cavity, if not done just right.
Good Luck,
Rick