This classic is trotted out faithfully every Christmas in our household and familiarity just improves the experience. Although bordering on slapstick, Chevy Chase is just hapless enough to be believable. Who has not shared his experience of looking for that rogue bulb which is stopping the set from working but, of course, in his case he does not do things by halves - it is the entire house that is covered so it really is like looking for a needle in a haystack.
So top marks for the film. However, the Blu Ray DVD is another matter. Having got an LED TV and a Blu Ray player, we bought the Blu Ray version, expecting to be totally wowed. Frankly it was very hard to discern any difference between this and the regular version. So my advice would be, if you have not seen it the film is a real treat, but save yourself some money and buy the regular rather than the Blu Ray Version.