How many launch dates one there digital transmissions?
Ch № Channel Channel content Transmission Format Launch Date Licence
List of television stations in Hong Kong
text text text text text text text
1-22274142-1
Free-to-air Television
Free-to-air Television
1 (A); 81 (D) TVB Jade TVB's main Chinese ( Cantonese ) channel. Analog & Digital SDTV 19 November 1967 TVB
2 (A); 11 (D) ATV Home ATV's main Chinese (Cantonese) channel. Analog & Digital SDTV 29 May 1957 ATV
3 (A); 84 (D) TVB Pearl TVB's main English channel. Analog & Digital HDTV 19 November 1967 TVB
4 (A); 16 (D) ATV World ATV's main English channel. Analog & Digital SDTV 29 May 1957 ATV
32 (D) RTHK 1 RTHK's main Cantonese and English channel. Digital HDTV 9 January 2013 RTHK
83 (D); 522 (M) TVB iNews A 24-hour news channel broadcasting in Cantonese. Digital & Mobile HDTV 11 November 2008 TVB
table_22274142_1
SELECT COUNT Launch Date FROM table WHERE Transmission = Digital
Digital