Advice on displaying DVD set chronologically.

I have the set of ‘Only Fools and Horses’ which I’ve ripped to MKV files, one for each episode. I’ve organised these as per the listing on the TVDB.COM so that there are 8 folders: one for each of the series 1 to 7 and one for specials (series 0).

As the specials were aired at various times, spaced in between the series or after, how can I ordered each show to appear in chronological order, instead of Series 1 to 7 and then Specials

Thxs