name another series with 4 duds in a row

duds meaning they were/still are* considered a disappointment critically and just general audience opinion but weren't necessarily flops at the box office but in most cases will have underperformed.
(*of course some may since been reappraised as being ahead of their time)

Alien (A3, AR, Prometheus, Covenant - not including AvPs)

Predator (AvPx2, Predators, The Predator)