I find myself watching this TV piece regularly for various reasons.
The side show is sometimes more interesting than the celebrity chef and critics table. I refer to the other diners tables which are sometimes occupied by an obnoxious bunch of snobby pretentious Irish nouveau riche. Their holier than thou attitude to the food is often dramatically contrasted by their poor table manners. They would do themselves more favours if they could handle their cutlery properly, avoid pointing with their knives and in particular drop their pompous accents which are often clearly put-on for the night. Also, their silly attempts at being knowledgeable at wines nearly always lets them down spectacularly. It's very difficult to name grape type and regions from taste - see how often the real experts get it badly wrong. It would be far more honest for them to just say how they like the wine and comment on it's flavour and scent, rather than trying to impress by effectively picking a wine name and region (and even year) out of a hat.
To me it's a fine example of how immature many of us are in the middle class with our new found wealth. The English upper middle class could still run rings around many of us when it comes to dining breeding. But as long as we can laugh at ourselves it's harmless fun.