This is a separate issue for media reporting on (say) new tanning treatments that are endorsed on screen during traditional "news hours" in undeclared infomercial segments that feature "independant" medical experts gushing over benefits of perineum UV treatments.
Frequently both the company that paid for the faux news segment and the guest experts that also benefit fail to have fiscal interests disclosed.
Doctors prescribing drugs recommended to them by pharma reps should disclose that connection.
On a media "news" program:
Producers of media programs should disclose any connection "experts" they interview on a subject have to the financial returns or funding of that subject.