The items were stolen on two separate days. At around 12.30pm on Sunday 30 December 2012, a man was seen to take Xbox and Play Station games from the store and leave via an emergency exit without paying for them.
On 4 February 2013, at around 1.45pm the suspect removed a 22 inch television from the shelf and walked out of the store via the main entrance without paying for it.
On both occasions, the suspect was wearing a grey tracksuit with pale blue stripes down the sleeves and white trainers. During one of the incidents, he was wearing a flat cap.
Police are appealing for anyone who recognises the man from the CCTV images to contact North Yorkshire Police on 101, quoting reference 12120219399.