This review contains spoilers.
This episode, to me, has 'filler' written all over it, to meet the season's required episode count. It just feels like it was thrown together late in the season, and has little to really like about it, in my opinion.
The strangest thing for me about this episode is the appearance of Bruce Forsyth, well known to Brits (such as me) as an entertainer with a career stretching back to the 1950s. We'd already seen several familiar British faces in the England-set 'Deja Vu' at the start of the season, but seeing Forsyth here feels really odd.
I don't really care for the plot of this one much at all. It is very slow in places, and for the most part not very interesting. In fact, for most of the episode, it felt like an episode from the far inferior fifth season.
I think the main thrust of the plot was intended to be that Rick was too busy wrapped up in his new found wealth to help his friends Magnum and T.C. out, but it just comes off as an unfocused mish-mash. I find the idea to not be very well realised, and for the whole it just doesn't work.
And beyond that, I just didn't find Rick becoming a millionaire very convincing at all. So much more could have been done with it, even on a limited budget.
The best bit about this shaky episode is the Casablanca-style final scene, with Rick saying goodbye to Jeannie, but sadly it is not as good as it might have been, as the rest of the episode building up to it has been rather sub par.
All-in-all, not a particularly good episode at all. 'This Island Isn't Big Enough...' probably gets my vote for weakest episode of the season, but even so, 'A Little Bit of Luck...' is pretty poor.