A great documantary about Markos Vamvakaris in 3 parts, broadcasted by "Mhxanh tou xronou" ("time-machine") on Greek ALPHA-TV. Unfortunately I missed the first 10 minutes, but is still very interesting.
Some of the speakers about marko's life are his son stelios vamvakaris, manolis dimitrianakis, manos tsilimidis and others.

Fragments of an interview with the so called "teacher" of rebetika and laika vasilis tsitsanis, talking about his life, marika ninou and thessaloniki, as presented on the greek tv show "stin ygeia mas".