Question: What character is played by Angel Chiang in the series 'When Heaven Burns' first broadcast in 2011 and which was aired on the first wireless commercial television station in Hong Kong, which now runs five free-to-air television channels in Hong Kong?
Sentence (from "TVB"): It has a staff of about 4,200 and TVB's headquarters (Hong Kong TVB City) is Asia's largest commercial television production centre.
Relevant evidence: No