After starting our series with two Scottish Cup classics last weekend, and following it with a Friday night thriller, we have another memorable tie coming up on Sunday.
You can watch extended highlights of the gripping 2002 final between Celtic and Rangers from 19:15 BST on the BBC Scotland channel and the BBC Sport Scotland website and app.
There's even an accompanying live text commentary to help immerse you in the drama.
That classic Old Firm encounter comes after we kicked off the weekend on Friday with the 1981 semi-final replay between Dundee United and Celtic.
More will follow over the next few weeks and we'll let you know as soon as they're confirmed.