FANCY FOOTWORK

Tap America: How a Nation Found Its Feet,, 8p8pm, BBC4

‘TAP dance is a fform of musical eexpression that happens to be a dance.’ So says dancer Michelle Dorrance in this new historyh of the formform, which is likely to sign up new fans. Clarke Peters (pictured) — the man behind the musical Five Guys Named Moe — is our guide to a story that begins in Africa.