Question: Tianyi Film Company's Hong Kong studio became successful under the leadership of the founder of which dominant TV company?

Context paragraphs:
Runje Shaw: Runje Shaw (1896–1975), also known as Shao Zuiweng (C.W. Shaw) and Shao Renjie, was a Chinese film entrepreneur, producer, and director.  The eldest of the Shaw brothers, in 1925 he founded Tianyi Film Company (also called Unique Film Productions) in Shanghai, which became one of the top three film production companies in pre-WWII Republic of China, and the beginning of the Shaw Brothers media empire.

Shaw Organisation: Shaw Organisation is a film distribution company and movie theatre chain founded by brothers Runme Shaw and Run Run Shaw who went to Singapore in the 1920s to expand their family business founded by Runje Shaw.  The company originally operated as a distributor for the Shaw brothers' Tianyi Film Company (also called Unique) in Shanghai.  Run Run Shaw later moved to Hong Kong in the 1950s to run Shaw Brothers Studio, whilst Runme Shaw stayed in Singapore to continue Shaw Organisation's operations.  Unlike Tianyi, Shaw Organisation does not produce films but distribute them in their theatres.

Run Run Shaw: Sir Run Run Shaw, GBM, CBE ( November 23, 1907 – 7 January 2014), also known as Shao Yifu and Siu Yat-fu, was a Hong Kong entertainment mogul and philanthropist.  He was one of the most influential figures in the Asian entertainment industry.  He founded the Shaw Brothers Studio, one of the largest film production companies in Hong Kong, and TVB, the dominant television company in Hong Kong.

Mulan Joins the Army (1928 film): Mulan Joins the Army () is a 1928 Chinese film directed by Hou Yao for the Minxin Film Company.  Minxin invested 30,000 yuan, to send a 20-member crew to Northern China and made use of four hundred soldiers in filming.  Unfortunately for Minxin, the film was beaten to release in 1927 by competitor Tianyi Film Company's "Hua Mulan Joins the Army" ("Hua Mulan Congjun") directed by Li Pingqian, and starring Hu Shan, younger sister of the famed Hu Die.

Chen Yumei: Chen Yumei (; 1910–1985) was a Chinese film actress and singer active during the 1920s and 1930s.  In her heyday she was one of the biggest stars in China, crowned "Movie Queen" in 1934.  At the peak of her career she married Runje Shaw (Shao Zuiweng), the boss of Tianyi Film Company, and retired from acting.  She was nicknamed the "frugal star" for her efforts at promoting the virtue of frugality.

Tianyi Film Company: Tianyi Film Company (), also called Unique Film Productions, was one of the "big three" film production companies in pre-Second World War Republic of China.  Founded in Shanghai in 1925 by the Shaw (Shao) brothers led by Runje Shaw (Shao Zuiweng), the company also established operations in Malaya and Hong Kong.  Although the company's Shanghai studio was destroyed in 1937 during the Japanese invasion, its offshoot in Hong Kong, later called Shaw Brothers Studio, blossomed into a media empire under the leadership of the youngest brother, Sir Run Run Shaw.

Lianhua Film Company: The Lianhua Film Company () was one of the three dominant production companies based in Shanghai, China during the 1930s, the other two being the Mingxing Film Company and the Tianyi Film Company, the forerunner of the Hong Kong-based Shaw Brothers Studio.

Youth in Hong Kong: Youth in Hong Kong, according to the University of Hong Kong Statistical Profile, includes citizens of the Chinese territory of Hong Kong aged 15–24 years.  As of 2011, youth in Hong Kong ages 15–24 made up 12.4% of Hong Kong's overall population at 875,200 people.  Hong Kong is a hybrid culture, influenced by China and Britain, but overall by its international economic ties, which plays a role in shaping the lives of the youth in Hong Kong.  The youth in Hong Kong are unique in the fact that many are living Transnationalist identities.  The demographics are not just ethnically Chinese youth in Hong Kong, but also youth that are ethnically White, Indonesian, Filipino, which can be seen in Demographics of Hong Kong, and that creates a unique society.  "Although with a dominant Chinese population, Hong Kong is an international city and is a mix of East and West rich in cultures, history, and religions."  The disparity between the rich and poor within Hong Kong has been growing wider.

Runde Shaw: Runde Shaw (1899–1973), also known as Shao Cunren and Shao Rendi, was the second-oldest of the Shaw brothers, originally from Ningbo, Zhejiang, China, who established Tianyi Film Company (also called Unique) in Shanghai in the early 1920s, setting the stage for what would become the most prolific film production company in Asia.  His father was Shanghai textile merchant Shaw Yuh Hsuen (1867–1920).

Mulan Joins the Army (1939 film): Mulan Joins the Army is a 1939 Chinese historical war film.  It is one of several film adaptations of the Hua Mulan legend, which have included two silent versions: "Hua Mulan Joins the Army" (1927) by Tianyi Film Company, and a less successful "Mulan Joins the Army" (1928) produced by Minxin.  The story was also the basis for the 1998 Disney animated film, "Mulan".

Supporting paragraphs: Tianyi Film Company Run Run Shaw
Answer: TVB