Fave episode is 'death is in the air' right now. Judd Nelson's role as Thornberg virus specialist was hilarious! 'Bollywood Homicide' and 'High-top fade out' are also great, not least because of the wonderful re-renditions of the main psych theme song. In 'High-top', boyz 2 men does a great unseen guest role as the voices for Gus' college band.
Think tank is probably my all time fave episode of this season, not least because of the twist that occurs in the first twenty minutes.
Psych always features killer guest stars and I continue to watch devotedly because of the chemistry between Shawn and Gus.
Am so sad that the series just wrapped! --If you are even a remotely devoted psych fan and you haven't seen the finale yet, WATCH IT! Everyone right now is talking about the how I met your mother finale, what a let down etc.... The finale of Psych is one of the most touching, funny, heartfelt things I have ever seen-- completely true to the spirit of the show!!