Trader Vic's Syrups & Tahiti Joe (Vintage)

We recently found these bottles at an estate sale. The Trader Vic's Grenadine has the date "2/18/78" on the cap, but we have no idea the age of the others.

Trader Vic's Grenadine

Trader Vic's Ko-Ko Kreme Syrup

Tahiti Joe Sangria

Anyone know anything about the Tahiti Joe? How old is the Ko-Ko Kreme? They certainly don't appear to be potable anymore, the grenadine is open, presumably since '78, and the Ko-Ko Kreme and Sangria are chunky and cloudy.