== Introduction of new varieties == 

 Claims that 

 : In the 1990s, long after the other products in the range had passed into obscurity, the Tango brand was expanded into other flavours 

 I can't be sure, but I think the apple flavour (at least) was around in the late 80s, and a date given elsewhere says 1988. As I said, I can't be sure, but I'm not the one claiming a definitive date, so the onus is on the claim being made to be backed up.