When Joe is flipping through channels on the television, the first program is the talent competition show 'Hot Shot' from Fifteen Million Merits (2011).
One of the people watching Harry's attempt to pick up Jennifer had the username 'I_AM_WALDO'. Waldo was a character in The Waldo Moment (2013).
The song that Beth sings at karaoke is the same song that Abi Kahn sings in Fifteen Million Merits (2011). The song is 'Anyone Who Knows What Love Is (Will Understand),' recorded by Irma Thomas in 1964.
The first guess Potter (Rafe Spall) makes about Matt's (Jon Hamm) occupation is a marketing person. This is a reference to Jon Hamm's character in Mad Men (2007), who works at an advertising agency.
When Matt is talking about his wife blocking him, the technology is very similar to the technology used in The Entire History of You (2011).