To get from Anaheim the Price Is Right, the fastest way--even w/traffic--is to drive. If you choose not to, it's still possible to get there using public transportation, but be sure to allow plenty of time for transfers.
From Anaheim, you can take the
Metrolink or Amtrak train up to LA's Union Station (downtown). From there, you will need to transfer to the
Metro Red Line subway. This station runs 2 trains, so be sure you get on one that says "North Hollywood" and NOT "Wilshire and Western".
You will need to get off at the "Hollywood & Highland" station and then catch a metro bus #217 westbound. Get off at Beverly & Fairfax and the CBS Television Studion where show is filmed should be right across the street.
If you get there early, there's a little shopping area called
The Grove &
Farmers Market where you can grab something to eat.
Just an FYI, the Metrolink and the Metro are 2 different systems. You will need to check the Metrolink website for ticket price up to LA. But I suggest you buy a 1 day pass when using the Metro system. It's only $3 and can be used on all subway/lightrail/bus lines.