The Guardian's TV tonight column highlights a night dominated by music and entertainment, with Sky Arts marking the Grand Ole Opry's centenary and Channel 4's The Piano returning with a new location after fire damage forced a change of venue.

Below are tonight's picks across British television.

– Grand Ole Opry: Opry Live (7pm, Sky Arts) — country stars including Carrie Underwood, Kathy Mattea and Suzy Bogguss perform as the Nashville institution marks its centennial.
– Border Force: America's Gatekeepers (7pm, U&Dave) — a look at customs officers' work on the US/Mexico border.
– Beethoven's Fifth at the Proms (9pm, BBC Four) — archive performances of Beethoven, Mussorgsky and Strauss, hosted by Petroc Trelawny and Georgia Mann.
– The Piano (9pm, Channel 4) — amateur pianists, relocated to London after a fire near Glasgow Central, play for judges Claudia Winkleman, Mika and guest Jamie Cullum.
– Love Island (9pm, ITV2) — drama continues as the villa nears its final, with several contestants having left early.
– Unacceptable (9pm, TLC) — comedians Richard Ayoade and Joanne McNally host a provocative panel show with guest comics.
– Live sport: World Cup Football, Spain v Argentina (7pm, BBC One/ITV1) — the final from New York/New Jersey Stadium.