Although Yamada is known for his long-running series of movies—four films in the A Class to Remember series, 13 in the Free and Easy (Tsuribaka Nisshi) series—none has reached the prolific numbers of the Tora-san series.
Meskipun Yamada dikenal karena empat film jangka panjangnya dalam serial A Class to Remember, 13 film dalam serial Free and Easy (Tsuribaka Nisshi)—tidak ada jumlah prolifik yang diraih dari serial Tora-san.