Due to its multiple studio facilities , namely its Chapultepec and San Angel studios , Televisa preserved most of its scripted series for broadcast years after the preserved programs had ended their original runs . Some Televisa programs , however , were lost not due to wiping , but due to the 1985 Mexico City earthquake that destroyed part of the network 's archive . However , smaller channels , such as XEIPN-TV and XHDF-TV , did not begןn to preserve their recorded broadcasts until the early 1980s . Monterrey 's Multimedios Televisión keeps most of its programming , though some special historical programming dealing with its flagship station 's history clearly shows that some footage has been either donated by viewers recorded from its original broadcast , or uses footage of its programming recorded by fans and uploaded to websites such as Dailymotion , Vimeo and YouTube
1985 Mexico City earthquake
1985 Mexico City earthquake
Wiping