Table:
text: Television in China
Nationwide Satellite TV Network
Nationwide Satellite TV Network
Name_ Hanzi Origin Launch Owner_
Anhui Satellite Television 安徽卫视 Anhui 1997 Anhui Television (AHTV)
Bingtuan Satellite Television 兵团卫视 Xinjiang 2009 Bingtuan Television (BTTV)
Beijing Satellite Television 北京卫视 Beijing 1979 Beijing Television (BTV)
Chongqing Satellite Television 重庆卫视 Chongqing 1997 Chongqing Broadcasting Group (CBG)
Dragon Satellite Television 东方卫视 Shanghai 1998 Shanghai Media Group (SMG)
Gansu Satellite Television 甘肃卫视 Gansu 1998 Gansu Media Group (GSMG)
Guangdong Satellite Television 广东卫视 Guangdong 1960 Southern Media Corporation (SMC)
Guangxi Satellite Television 广西卫视 Guangxi 1970 Guangxi Television (GXTV)
Guizhou Satellite Television 贵州卫视 Guizhou 1998 Guizhou Television (GTV)
Hebei Satellite Television 河北卫视 Hebei 1998 Hebei Television (HEBTV)

Question: What was the earliest television launch from Beijing on China's nationwide satellite television network?