List of 2021 dramas

During television prime time (typically between 20:00 to 22:30), the two largest television stations - Central Zone Television Broadcasts Limited (CZTV) and Television Broadcasts Limited (TVBILN) - release dramas to compete for viewership. This is a list of all dramas played in 2021 during prime time.

First Line
First line series are aired between 20:00 and 20:30, and are sitcoms.

Second Line
Second line series are aired between 20:30 and 21:30, and are primarily dramas of familial matters.

Third Line
Third line series are aired between 21:30 and 22:30, and are primarily dramas of more mature matters.

TVBILN Channel 21
TVBILN Channel 21 is a channel that broadcasts to the entire Nicholasland, and is primarily in Cantonese.

First Line
First line series are aired between 20:00 and 20:30, and are primarily sitcoms. The sitcoms are normally "in sync" with Hong Kong's TVB.

Second Line
Second line series are aired between 20:30 and 21:30. These are primarily re-run classic series that have previously been aired, sometimes they are new series that are "in sync" with Hong Kong's TVB. If a bracket with a year number is marked beside the drama's title, it indicates that this is a rerun of the series from that particular year.

Third Line
Third line series are aired between 21:30 and 22:30, everyday including weekends, unless otherwise specified. These are primarily new top-hit series from TVB, and are typically "in sync" with Hong Kong's TVB. If a bracket with a year number is marked beside the drama's title, it indicates that this is a rerun of the series from that particular year.

Fourth Line
Occasionally, TVBILN chooses to air more series during the segment 22:30 to 23:30. These series are either replay of midnight news, or the specific series listed below during these dates. In case of a series airing, the midnight news will be moved to air between 23:30 and 00:30 instead.

In 2021, TVBILN has marketed the fourth line dramas as soirée mystère, airing classic detective dramas. This designation expired on 01 October.

Late Night
TVBILN has aired rerun of old series late at night from 00:00 to 02:00 each morning during the COVID-19 pandemic.

TVBILN Channel 25
TVBILN Channel 25 airs different contents in different administrative divisions, and are primarily contents in regional languages and other languages. If a bracket with a year number is marked beside the drama's title, it indicates that this is a rerun of the series from that particular year. Records are incomplete as dramas are aired on an irregular schedule on Channel 25.

Weekend
The TVBILN uses the weekend time slot to air movies.

HKTVN-ILN
In February 2020, HKTVN-ILN has acquired the airing rights of ViuTV and RTHK shows, and will begin airing them during prime time. There is currently just one line of series, airing from 21:00 to 22:00.