IKEA pieces have been used in institutional settings on numerous shows including Seattle Grace Hospital and Princeton-Plainsboro Teaching Hospital. Season 2 of Sleepy Hollow finds Captain Irving continuing his fight against evil in the Tarrytown Psychiatric Institute.
So far I've only spotted the BJURSTA table.
BJURSTA tables can be seen here in the common room (episode 3)
and below in the library (episode 4).
I expect we'll be seeing more of Tarrytown Psychiatric as the season goes on.