Here is the list of the 2009-2010 Fall TV Schedule of shows to watch related to Veronica Mars. That is any of the Veronica Mars main guest or gueststars who are on shows that is on:

Party Down Starz
Rob Thomas’ new show which stars Veronica Mars cast/gueststars Ryan Hansen, Adam Scott, Ken Marino and Jane Lynch (Season 1) and filled with many Veronica Mars cast/gueststars making appearances like Alona Tal, Jason Dohring and Kristen Bell.

The Young and The Restless CBS Tune in weekdays.
Michael Muhney is currently playing Adam Wilson

Monday

Heroes NBC 8/7C (Premiere Date: Sept 21, 2009)
Gueststars on the show have included Kristen Bell, Francis Capra, Dana Davis, Blake Shields and many more. Catch the new season to see Tessa Thompson gueststar appearance.

How I Met Your Mother CBS 8:00pm et/pt (Premiere Date: Sept 21, 2009)
Alyson Hannigan stars as Lily Aldrin

Gossip Girl CW 9/8C (Premiere Date: Sept 14, 2009)
Kristen Bell voices Gossip Girl and Leighton Meester plays Blair Waldorf. Krysten Ritter gueststarred.

Tuesday

Son of Anarchy Tuesdays FX 10pm (Premiere Date: Sept 8, 2009)
Theo Rossi stars and Taylor Sheridan, Francis Capra and Dendrie Taylor gueststarred.

Wednesday

Glee 9/8c on FOX | 9pm et/pt on GlobalTV (Series Premiere Sept 9, 2009)
Stars Jane Lynch and Dianna Argon who have made gueststar appearances on Veronica Mars.

Eastwick ABC

Thursday

Supernatural Thursdays CW 9/8C (Premiere Date Sept 10, 2009)
Alona Tal returns to the show this season and Paris Hilton gueststars.

Private Practice ABC 10/9C (Premiere Date: October 1, 2009)
Chris Lowell stars as William ‘Dell’ Parker

Friday

Smallville CW 8/7C (Premiere Date: Sept 25, 2009)
Aaron Ashmore was known for gueststarring as Jimmy Olsen (died last season) and Kyle Gallner gueststarred as Bart Allen.

Ghost Whisperer CBS 8pm ET/PT (Premiere Date: September 25, 2009)
Alona Tai and Kyle Secor have gueststarred on the show.

Saturday

Legend of the Seeker (Check Site for local listings) (Premiere Date November 7, 2009)
Charisma Carpenter makes an appearance in the Season 2 premiere.