phone interview then interview in person. only took a few days from applying online to get interviewed. fairly basic qeustions and didn't take too long. would rate it quite easy overall.
The entire interview process was pretty much a straight forward one. They asked about whether or not you had any prior experience, why do you want to join work with them.
I applied in-person. The process took 2 weeks. I interviewed at Tesco (Pitsea, England) in Nov 2013
Interview
Sat down with a group of applicants to watch a video of the how Tesco works. This is after passing the initial multiple-choice application form. The video was over an hour and after the video you are shown around the store.