Las Vegas with Trevor McDonald ITV, 9pm According to the popular slogan, 'what happens in Vegas, stays in Vegas'. That might work for tourists who are visiting for a wild weekend, but what about the people who actually live and work there? Trevor McDonald is about to find out as he looks beyond the casinos and bright lights to learn the truth about life in'Sin City'. Among the people he meets is a former high-class call girl, who at the height of her career was earning $2m a year, and now runs a safe house for prostitutes who are trying to escape the clutches of violent pimps. Meanwhile bail bondsman Jon talks about his dangerous line of work, and the temptations of all those casinos. Trevor also meets one of the city's most famous residents, former World Heavyweight Champion Mike Tyson, who discusses his experiences of winning and losing big, and reveals why he's now unlikely to be found on the city's famous Strip.
Cefn Gwlad S4C, 8.25pm Yr wythnos hon bydd Dai Jones, Llanilar yn ymweld a Wyn Williams a'r teulu, ar Fferm Penrhyn, Llanfwrog, ger Caergybi. Gwartheg biff a defaid yw'r system ffermio, gyda Wyn yn cael llwyddiant gyda'i wartheg mewn sioeau'r Nadolig. Ond oherwydd lleoliad godidog y fferm, ar arfordir gogleddol Ynys Mon, mae'n dynfa naturiol i ymwelwyr. Mae'r teulu felly wedi arallgyfeirio i fyd twristiaeth ers rhai blynyddoedd gyda Wyn, a Gwen ei wraig, yng ngofal bythynnod gwyliau moethus ar fuarth y fferm, a Rob brawd Wyn a'i wraig, yn rheoli'r maes carafanau eang. Yn cadw llygad ar y cyfan, mae rhieni Wyn a Rob - Trefor ac Olwen.
London Spy BBC Two, 9pm After leading its everyman protagonist through the tangled and shady worlds of the intelligence community and the corridors of power in Westminster, screenwriter Tom Rob Smith's espionage thriller reaches a gripping conclusion. Danny finally discovers the shocking truth about what happened to his MI6 agent lover Alex, and finds what really took place that night in the attic before he found the decomposing body locked in a trunk. Starring Ben Whishaw and Jim Broadbent, with Adrian Lester and Harriet Walter. Last in the series.