Too many to name them all, but ...
1. Saved by the Bell alumni tie - Leah Remini and Tiffani Amber Thiessen (from saved by the bell and their many other series)
2. Jennifer Aniston
3. NYPD Blue tie - Charlotte Ross (Connie McDowell), Gail O'Grady (Donna Abandando), Sherry Stringfield - see...