Dean Geyer and Lea Michele star in the fourth season of Glee.
Glee, Channel Ten, 7.30pm
HELL hath no fury like coach Sue Sylvester (Jane Lynch), whose anger is off the Richter scale when the Glee Club proposes an unconventional casting choice for the role of Betty Rizzo in a production of Grease. Tonight's upbeat episode, ''The Role You Were Born to Play'', sees the return of key characters from earlier seasons and, attention Grease tragics, is just a warm-up for next week's episode.
Monster Bug Wars: Enemy Empire, SBS One, 7.30pm
NATURAL science documentary or anthropomorphic smackdown? We'll leave that question to viewers. The premise of this series, made by Australia's Beyond for the Discovery Channel, is to pit two insects into a gladiatorial battle for survival. Among tonight's matches are cellar spider (aka daddy longlegs) versus whitetail spider, antlion (aka doodlebug) versus trapdoor ant, and redback spider versus centipede, which, according to our narrator, would be locked up for life if there were a maximum-security prison for bad bugs. If the breathless ringside commentary and meaningless human-world analogies aren't enough, we are also treated to sound effects such as battle marches, police sirens and digestive noises that could have emanated from Homer Simpson. Though it's silly, there's some informed commentary by entomologists Dr Linda Rayor and Dr Bryan Grieg Fry from the University of Queensland.
Beauty & the Beast, ABC2, 8.45pm
THE template of ''life-swap'' observational documentaries such as this follows a fairly predictable pattern. Plonk together person A and their polar opposite, apply the pressure of a cooked-up situation, and watch as hostility, disbelief and judgment dissolve into sympathy, friendship and mutual understanding. As TV entertainment goes, the stakes are high in this returning British series in which a facially disfigured person spends a couple of weeks with a ''beauty addict''. Tonight, 21-year-old model Holly meets 27-year-old Nelly, who has a rare, life-threatening and disfiguring skin condition. Though their encounter is meant to challenge their perspectives, it merely leads to some uncomfortable revelations about Holly's childhood and a heartfelt appreciation of the difficulties Nelly faces.
Obsessive Compulsive Hoarder: The Big Clear Out, ABC2, 9.30pm
LIKE Beauty & The Beast, this is another borderline exercise in tawdriness masquerading as social analysis. Here, the focus is Richard Wallace, an obsessive hoarder in Surrey, England, whose unusual circumstances have been featured in 60 Minutes. Unable to discard anything, his house is a rabbit's warren of newspapers and household junk that, literally, threatens to squeeze his last breath of life. This follow-up program follows the efforts of his neighbour Andy, who has rallied the villagers to help. But Andy's good intentions and non-therapeutic tactics have raised the eyebrows of the villagers, as well as health workers.
Dynamo: Magician Impossible, Channel Seven, 8.30pm
SLIGHT, weedy and very ordinary, British magician Stephen Frayne, aka Dynamo, is a far cry from the caped wizard of the vaudeville era, or the spangled showman of a Vegas casino. He mixes with sports stars and hip-hop artists, and has a colourful backstory about growing up in poverty in Bradford and learning the tricks of his trade from an errant grandfather. His now-you-see-it-now-you-don't approach may be prosaic and low-key, but that only adds to the element of surprise he leaves on his stunned subjects. One hour on the internet should be sufficient to uncover many of the age-old tools he and his colleagues such as David Blaine deploy - misdirection, sleight of hand, illusions and tricked-up devices - but his shtick is fresh, dexterous and skilled enough to overcome the pedestrian style of this blatantly self-promotional series.