Tonight’s television highlights include Fightland, a boxing-and-gangster drama executive-produced by 50 Cent, alongside new episodes of Dragons’ Den, The Art Game, A House Through Time, Ludwig and The Red King.

– Fightland follows champion boxer Duke Kilroy as he seeks revenge for his brother’s murder.
– Dragons’ Den features a water-saving device, a health-food business and a viral street-art venture.
– Ludwig turns a wedding into a murder investigation, while The Red King follows a compromised police officer.