Cisco and Ralph take Frost on her first public outing to the art she where Kamilla is showing off her photographs and Frost is rudely dismissive of the artworks in episode 6x02 “A Flash of the Lightning”.
Source: JordanVanMusic — Twitter via What's Filming
Peyton hangs out at the bar where Blaine has gotten a job as a lounge singer in episode 3x03 “Eat, Pray, Liv”. Blaine plays a maudlin song on the lounge piano and receives a less-than-warm reception in episode 3x07 “Dirt Nap Time”.
Liv, Clive, and Ravi investigate the murder of a mindfulness guru who was killed after one of his classes in episode 3x03 “Eat, Pray, Liv”.
The team investigates a murder in a theater during a performance arts event in episode 1x11 “I Like to Watch”.