[WillPS]

Of course Opal Fruits and Starburst are NOT the exact same, as Opal Fruits was Orange, Strawberry, Lemon, and Lime, while Starburst is Orange, Strawberry, Lemon & Lime, and Blackcurrant. They now co-exist.
www.dailyrecord.co.uk 

Ignore the thumbnail saying limited edition - that article's from 2020 but they were definitely on sale a few months ago.

Of course this is actually way off topic now but they were the exact same product at the time of the branding change. The flavour changes happened in the decade or so after.