What visual TV techniques have become common in contemporary film?
Probably the most common television technique used in film today is the adoption of faster frame-rates. For years, cinema used the 24 frames-per-second standard, resulting in a specific visual quality that is widely recognised as "filmic." Television started with film but soon switched to a largely video-format, because of the lower cost; most video cameras recorded at a standard 30fps, giving television a different visual quality than film. This is most obvious in multi-camera sitcoms, where there is a minimum of post-production on the final image.
Today, because of the rapidly-decreasing cost of digital film and video, many low-budget films are shot on digital video and processed to film, whether 35mm or digital. Depending on the processing, the resulting image may have a smoother speed or higher resolution. This allows both cheaper and faster shooting, and as the formats increase resolution and adaptable frame-rates, the line between "TV look" and "movie look" is blurring.