Northern Lights is a 2006 comedy-drama broadcast on ITV starring Mark Benton and Robson Green.
A sequel, City Lights, was broadcast in 2007.
Also a Christmas special, Clash of the Santas, was broadcast in December 2008.
It featured Colin and Howie taking a trip to Lithuania to represent the United Kingdom in a Santa convention.
The main problem with this is that miserable Howie is picked as Santa, while true Christmas believer Colin is relegated to the role of cheerleading elf.