The subtlety of advertising

On British television at the moment, ASDA, one of the major supermarket chains has an advertisement where they claim that an independent price checker say that they have loads more cheap products than a cut-price supermarket rival, Tesco.

This is a sample of one of the ads.

The thing that caught my attention is that the music from the ad is the theme tune from a classic British comedy called Dad’s Arrmy. Everybody in Britain would know that the main line of the song is “Who do you think you are kidding Mr Hitler?”

Is this a really subtle way for for one British supermarket to call another British supermarket Nazis?