Below is a link to a excellent survey of Chen Man Ching, which many consider to be a standard of yang Style Tai Chi…….this is on youtube.com in case link doesn’t work.
it shows pushing hands, sword play,67 sword, two man drills, barehand form. about 9 minutes long…
type in qigong and there are many many, vintage clips of the old masters there one of Bagua master Wang Shu jin not long but a nice clip of him and robert W. Smith.