Reality show host Jeff Probst makes a cameo appearance in tonights episode of Two and a Half Men.

• Two and a Half Men, M-Net, 20.00

Walden and Alan find themselves on dates with two ideal women until Lyndsey’s jealousy throws a wrench in their evening.

• Alps From Above, Discovery World, 21.00

Gain a breathtaking bird’s-eye view of the most prominent mountain range in Europe. Journeying across Slovenia, Germany, Austria, Switzerland and Italy, this series uses a range of aerial shooting techniques to gain a unique perspective on the wildlife and people who inhabit these peaks. Criss-crossing the Alps from Triglav, the highest mountain in Slovenia, to the Swiss ski resort of St Moritz and exploring the vistas between the shores of Lake Constance and Salzburg County, each episode uncovers the beauty and diversity of this region.

• Airboss, Discovery HD, 21.00

Most air show bosses and performers are former fighter pilots. They’ve been trained to be the best, and admittedly programmed to be ruthless, unforgiving so-and-sos. Even when a show is going as planned, nature, mechanics or dumb luck can come into play, and the results can be disastrous. Each week, the series follows Wayne as the show’s focal point – intermingling ruthless performer competitiveness, conflicting egos, spoiled-brat millionaires and the constant risk of imminent death.

• Big Ang, Vuzu, 21.30

Big Ang enters her prince, Lil’ Louis, in a dog show. But after he sinks his teeth into the groomer’s hand, Ang realises Louis needs some serious training before he can show off his true star power. At the show, Louis faces some stiff doggy competition, except when it comes to cuteness.