BBC First HDTV (BBCF)

Take a deep dive into aquatic mysteries. Glide over a buried Italian city, a unique underwater cemetery in the Florida Keys, a golden brick path to nowhere in the depths of the North Pacific, and perplexing rocky structures off Australia's coast.

In the Season 5 premiere, Father Brown investigates when the son of a duke is abducted from Lady Felicia's Yuletide ball.

Rick unveils a new set of answers, including some unlikely ones. In the elimination round, contestants with clever selections secure their spot in the final round for a shot at the £10,000 prize.

Contestants race against a trivia expert in a fast-paced quiz show. They must answer tough questions quickly to win big money and avoid being caught.

Sandi Toksvig considers all things odorous and odious with Sally Phillips, Ross Noble, Nish Kumar and Alan Davies.

Sandi Toksvig considers various odds and ends with Romesh Ranganathan, Matt Lucas, Liza Tarbuck and Alan Davies.

Rick unveils a new set of answers, including some unlikely ones. In the elimination round, contestants with clever selections secure their spot in the final round for a shot at the £10,000 prize.

Contestants race against a trivia expert in a fast-paced quiz show. They must answer tough questions quickly to win big money and avoid being caught.

Sandi Toksvig considers all things odorous and odious with Sally Phillips, Ross Noble, Nish Kumar and Alan Davies.

Sandi Toksvig considers various odds and ends with Romesh Ranganathan, Matt Lucas, Liza Tarbuck and Alan Davies.