2013 holiday adverts debut online

At one time, November meant the unveiling of dazzling holiday window displays in high street stores.

Now November also stands for holiday advert debuts. M&S is only one of many UK retailers revealing its holiday ads on multiple screens--TV, mobile, and beyond.

John Lewis is unveiling its 2013 holiday animated advert this weekend, as if you didn't know by seeing the Twitter hashtag #sleepingbear and the teaser ads leading up to the big event. Of course, John Lewis showed its advert online first. The official TV debut is during X Factor. 

Tesco is going all out for nostalgia, complete with a Rod Stewart soundtrack for its holiday advert.

Designer clothes are the stars of the Debenhams holiday advert this year, adding glamour to a heartwarming reunion story. The finale takes place on ice, just the right touch for a winter holiday feeling.

Marketing Week critiques what it calls the winner, the runners-up, the losers and the bizarre holiday ads here.