Tonight in HD: May 18

Season Highlight: Sherlock (TV One, 8.30) It’s Sherlock’s most famous case, but is a monster really stalking Dartmoor? What seems like fantasy in Baker Street is a very different prospect in the ultra-secret army base that looms over the moor. “The Hounds of Baskerville took the most famous of all Sherlock Holmes stories, gave the original title just the smallest of tweaks, then had its wicked way with the rest of the tale,” said The Daily Telegraph. “The whole thing was pacy, sharp and witty.” The Independent said Hounds had “far more action, along with a good share of scares” than last week’s A Scandal in Belgravia. “The plot was also far more cogent and well put together … Just like the novel, there were touches of horror and darkness, along with the theme of creating fear to control others. However, there was also a fascinating science fiction element thrown into the mix that grounded the story and gave it a sense of authenticity.” The Times’ Andrew Billen quipped the episode was “a little Avengers for my taste. Sherlock is still fabulously superior TV, of course. My only quarrel is that the episode repeated Holmes’s most stupid remark: ‘Once you eliminate the impossible, whatever remains, no matter how improbable, must be the truth.’ My dear Holmes, what remained would simply be the possible.” ✮✮✮✮

Sky Movies Greats Premiere: Underworld: Rise of the Lycans (Sky 22, 8.30, 5.1) The Tinseltown trades were surprisingly gung-ho about this vampires-vs-werewolves prequel. "First-time helmer Patrick Tatopoulos (who designed creatures for all three pics) offers a satisfyingly exciting monster rally that often plays like a period swashbuckler," said Variety while The Hollywood Reporter praised "the sturdy performances by holdovers Michael Sheen and Bill Nighy as well as tidy, unfussy direction". Arguably the most succinct appraisal was the Los Angeles Times': "Grimly competent." (2009) ✮✮✮

Home & Away (TV3, 5.30) John puts the press onto Harvey’s election rigging; Harvey, Mel and Lottie’s tragic past is revealed; April tries to win Dex’s attention back from Lottie. ✮✮

Friends (TV2, 6.30, R) The friends make New Year’s resolutions, but it looks like Rachel’s resolution to stop gossiping is going to be the hardest to keep when she finds out about Chandler and Monica’s dating. ✮✮✮✮

Shortland Street (TV2, 7.00) Chris cuts Hayley off; the Jefferies family receives heartening news; Ula faces a life she never wanted.  ✮✮✮

Glee (TV3, 7.30, 5.1) The New Directions go head-to-head with the Dalton Academy Warblers at Regionals. ✮✮✮

The Graham Norton Show (TV3, 8.30) With Julie Walters, footballer Didier Drogba, singer Jesse J and Simon Amstell. ✮✮✮✮

The Vampire Diaries (TV2, 10.30, 5.1) Damon is surprised to learn why Sage has returned, and pleased when she devises an unusual method to help him figure out what Rebekah is up to. ✮✮✮

Primeval (TV2, 11.30) The exhausted ARC team struggle to cope as more anomalies are opening. As the whole team lets Lester in on the secrets of Matt’s mission, they’re interrupted by worrying news. ✮✮✮

Numb3rs (TV3, 12.15, 5.1) A CalSci professor is tortured and murdered in his lab, where animals are subjected to medical experiments. ✮✮

NCIS: Los Angeles (TV3, 1.05, 5.1, R) Newly located in a Los Angeles mission, the NCIS Office of Special Projects welcomes Callen back to the team and races to solve a kidnapping case. ✮✮