What are some lesser-known obscure TV series that went under the radar, that you would recommend?

Border Line - British mockumentary that follows airport security forces. Even though The Office was British originally, this feels like they took they the US' Office and put their spin on that. There's definitely a Michael, a Dwight, a Pam and Jim etc. It's pretty fucking funny, but unfortunately they only made 2 seasons before it got canceled.