1979: BUCK ROGERS IN THE 25TH CENTURY MOVIE FEATURE FROM STARLOG MAGAZINE

From 1979: Another STARLOG MAGAZINE teaser for BUCK ROGERS IN THE 25TH CENTURY.

At this point, it had ceased to be a TV project (it was initially shot as the first of three teleflicks for NBC) and had morphed into a fully-fledged feature film.  And then, when the box office ticked the boxes, it landed back at NBC as a series.