TC should not be confused with TimeCode, which is a visible counter on screen throughout the film.

不应将TC和TimeCode(时间码)混淆，时间码是一个在屏幕上可见的计数器。

youdao

The unit has an LCD panel for status indication including record mode, frame rate, timecode and battery and media remaining time.

ENGADGET: Sony brings 4K RAW to NEX-FS700 camcorder courtesy of IFR5 add-on

The camera provides up to 29 minutes and 59 seconds of continuous recording (with 4GB automatic file partitioning) in selectable All i-frame or IPB compressions with embedded timecode.

ENGADGET: Canon unveils EOS 6D DSLR: full frame sensor and WiFi for $2,099 in December

Developed by Japan's NTT, the platform uses digital watermarksg that presents a timecode to the app running on the second device, allowing it to display content in sync with whatever is on the primary display.

ENGADGET