Castle Season 6 Spoilers

Nathan Fillion Solves A Case By Going Back in "That 70's Show'

Knowing upcoming episode of Castle air April 21, meaning a long time and watching reruns of season 6 on Mondays or watching either season 2, 3, 4, or 5 on TNT through the week. 

Castle fans have different standards on how they are justed to waiting for new episodes of the ABC series during the season. However, the episode 6x22 "That 70's Show" is going to be worth the wait. 

Nathan Fillion First Exclusive 70's Look: Castle's Grooviest Look Yet

When it comes to the "peril of polyester", Nathan Fillion is very well fond of. According to Nathan, Spending a week in donning synthetic clothing in the upcoming 70s-themed Castle episode, "Give me cotton any day." 

"Polyester- not the most fashionable wear of fabrics," Fillion reports. "It's hot, it is not very well to breathe in because you're wearing plastic, essentially."

Uncomfortable as it may have been, wearing the polyester outfit was worth it to produce an outstanding and fun hour of murder-solving TV. Finding the crime solving team channeling the past to solve a murder. "Seeing everyone dressed up all fancy and different than usual is kind of fun." Nathan adds "In the season 4 episode 'The Blue Butterfly' there was the 30's style clothing, but this time there's a lot more groovy about the 70's