I echo what Paul said mat...very well put. The stuff about the 70's versus the 90's episodes and the fact that whole last scene with Columbo explaining the clues was totally not needed.
And John...do you think Columbo noticed a little something when they were in the lawyer's office and the forensics guy, Patrick, is leaving and there is that look between him and Mrs. Calvert......it looks like Clifford noticed something.