Do. I mean really it probably isn't worth keeping in mind that the 2 are even related. BSG modern is more like if someone just took a few elements from the original and wrote an entirely original story around it. You are better off considering it to be an entirely new modern sci fi series. BTW the first 2 episodes, which iirc are 1:30 each? are stupidly tense/exciting. So you might want to allow a good 3 hours to get started if you ever fancy having a crack at it.