North Yorkshire Police have been contacted 15 times after a BBC Crimewatch appeal about an aggravated burglary.
Four masked men broke into a house in High Birstwith, near Harrogate, in December 2013, and threatened the family inside with crowbars.They stole shotguns, a rifle and expensive jewellery before driving away in the family's Porsche.
After the appeal went out last night, Crimewatch received eight calls, an email and a tweet. North Yorkshire Police received another five calls.
Det Insp Andrea Kell said: "We received some encouraging calls, particularly about the stolen jewellery. These will be followed up over the coming days."
A family left traumatised after masked burglars attacked them at their home in Harrogate will appear on television tonight in a bid to catch those responsible. The Kempley family were attacked with crowbars in December - and feature in this reconstruction, to be shown on Crimewatch.
David Hines, from the National Victims Association, says the word 'closure' is not something he is able to use. He has spoken after the appeal for information in connection with the murder of Nikki Allan in 1992.
Sharon Henderson, the mother of Nikki Allen who was murdered in Sunderland in 1992, says she fears appeal responses could be hoax calls. The BBC Crimewatch programme broadcast an appeal for information and police said the response was 'overwhelming'.