Why was Banner's first name and profession changed for the 1978 television series?

The show's Wikipedia page provides a couple of possible reasons for the switch:

Johnson changed the name of the Hulk's comic book alter ego, Dr. Bruce Banner, to Dr. David Banner for the TV series. This change was made, according to Johnson, because he did not want the series to be perceived as a comic book series, so he wanted to change what he felt was a staple of comic books, and Stan Lee's comics in particular, that major characters frequently had alliterative names. According to Lou Ferrigno, it was also changed because CBS thought the name Bruce sounded "too gay-ish," a rationale that Ferrigno thought was "the most absurd, ridiculous thing I'd ever heard." On the DVD commentary of the pilot, Johnson says that it was a way to honor his son David. "Bruce" ultimately became the TV Banner's middle name, as it had been in the comics. It is visible on Banner's tombstone at the end of the pilot movie, and that footage is shown at the beginning of every episode of the series.

His name was originally just Dr. Bruce Banner. Then Stan Lee got confused and accidentally put Bob Banner in a few comics. He decided to call him Robert Bruce Banner from then so whichever he said would be right. People still knew him as mainly just Bruce though.

In the TV series they also knew him as just Bruce. The writer changed it to David in honor of his son instead. Now it has all gotten too complicated so he is just Bruce Banner and his job was different in the TV series because they didn't want to copy the comics. The TV series isn't accurate.