The usage of "appear"

Question

Dictionary says "appear" is not used in the progressive tenses when means "to give the impression of being or doing sth."

Does this also apply to the meaning " to start to be seen"? For example, can I use the progressive tense of it in the following sentence?

An increasing number of professors are appearing in television news programs.

Answer 1

For meanings related to 'perform', you can use appear in progressive forms. Your sentence qualifies and so it is correct. Other examples:

She will be appearing in the new series of Game of Thrones.

That actor has been appearing in a lot of romance movies in recent years.

https://dictionary.cambridge.org/dictionary/english/appear