TV tonight: Wallis Simpson before Prince Edward

Wallis Simpson: Femme Fatale

9.30pm, Channel 5

Immortalised as the American divorcee who plunged the royal family into scandal through her relationship with Prince Edward, which precipitated his abdication in 1936, Wallis Simpson lived a far more colourful life than her entries in the history books often indicate. Through expert testimony and archive imagery, this documentary aims to detail a more comprehensive history, charting Simpson’s upbringing by a single mother and her tempestuous first marriage. Ammar Kalia

The Masked Singer

7pm, ITV

The masquerade continues, providing a hallucinogenic salve to our locked-down Saturday nights. Judges Jonathan Ross, Davina McCall, Rita Ora and Mo Gilligan carry on their speculation at the true identities of the celebs in the costumes, with Mel B and Sophie Ellis-Bextor already having been revealed. AK

Casualty

7.50pm, BBC One

It’s a slow burner this week as a young girl’s attack is not quite what it seemed at first. Robyn is on hand to help, but can she do enough? Meanwhile, lovable doctor Rash turns his hand to some hardcore flirting and there’s some politics as cynical Connie lets slip she appreciated Clap for Carers in Will’s exit interview. Hannah Verdier

Spiral

9pm, BBC Four

The eighth and final series of the formidable French policier proceeds with another double bill. Redhead lawyer and habitual rule-bender Joséphine finds herself blackmailed into yet another iffy legal position (plus ça change!). Meanwhile, Laure and Ali chase down a new lead in their gruesome murder case. Graeme Virtue

Jimmy Carter: Rock & Roll President

9pm, Sky Arts

Seeing America through the end of the 1970s and into the 80s, President Jimmy Carter was known for his musical affinities, most notably befriending Bob Dylan and Johnny Cash. This star-studded doc argues that it was this musical aptitude that held the key to his broad appeal. AK

Paul Sinha’s TV Showdown

10pm, ITV

The Chase is now enough of an institution to produce spin-offs. Paul “Sinnerman” Sinha is among the most charismatic of the chasers so it’s no surprise to see him spreading his wings. Here, he’s asking the questions – Fay Ripley and Rob Beckett are the team captains facing the music. Phil Harrison

Film choice

The Nun’s Story, 1.15pm, BBC Two

Fred Zinnemann’s solid and absorbing 1959 drama follows a young Belgian missionary nun in the Congo who discovers that the habit doesn’t suit her – a bit like The Sound of Music, but without the kids or songs. Audrey Hepburn is Sister Luke, Peter Finch the Von Trapp figure, Dr Fortunati. Paul Howlett

Live sport

Champions Cup Rugby Union: Ulster v Gloucester 12.30pm, Channel 4. A Pool B match.

Snooker: The Masters 1.15pm, BBC One. The first semi-final.

Premier League Football: Leeds United v Brighton and Hove Albion 2.30pm, Sky Sports Main Event. Followed by Aston Villa v Everton at 5pm.