Doctor who season 7

Doctor who season 7 aired from 1968 to 1969 and starred don knotts as the doctor 
Episodes
1.laird of the yeti
2.death of the rishnaks 
3.vengeance of the daleks
4.the invasion of the cybermen
5.lords of the red planet
6.the dreamspinner 
7.the master rides 
8.erik the red