China's consumer rights show targets Nikon, OZDairy and Datang unit
CCTV also takes aim at OZDairy and a unit of Datang amid surge in consumer complaints
The mainland's state broadcaster targeted Nikon cameras, Australian milk producer OZDairy and a unit of Datang in its annual consumer rights programme.
The Nikon D600 camera produced pictures with black spots and customer service did not adequately resolve the issue, China Central Television reported on Friday, citing users.
Dates on OZDairy's OZ Milko baby-formula cans were altered, and a business owned by Datang's Gohigh Data Networks Technology helped plant software in mobile phones to collect private information, it said.
Nikon and OZDairy are the latest companies featured in CCTV's 315 Gala, a show aired annually on March 15 to mark World Consumer Rights Day.
The programme highlights the state media's role in bringing allegations against foreign and Chinese companies that then may be pursued by government agencies.
The Japanese camera maker would offer free after-sales service to owners of its D600 digital camera, in line with a statement posted last month on the firm's website, spokesman Ryota Satake said. Nikon was aware of the issue with the camera and "aims to offer the same standard service for customers all over the world", he said.