Diet Rite and Diet RC are always getting confused for some reason (perhaps the company is linked somewhere) and has been for some years.

There are quite a few posts on the Diet RC vs. Diet Rite scattered throughout the Products Forum (and no takers on a bet that they're in all the other Forums as well).

When you have a moment, see what a SEARCH brings up...

I believe there's also a Product list of (yup) Splenda sweetened products, both at Splenda US www.splenda.com and Splenda Canada www.splenda.ca -- that might be quicker.