After recently seeing a Bob Newhart performance at the Wilbur Theater in Boston, in which Bob received two separate standing ovations, I decided to finally buy the complete series box set of "The Bob Newhart Show."  Therefore, I have no problems with the earlier releases of the first four seasons of the show.  In addition, although the video quality isn't of high-definition quality, the episodes are eminently watchable.  All problematic issues were soon forgotten after I started watching the show.  Bob Newhart was one of the first successful stand-up comedians to star in a TV sitcom.  That started a trend that continued with Tim Allen, Ray Romano, Jerry Seinfeld, and many others.  In addition, the show was not cancelled by CBS because of poor ratings.  After six successful seasons, Bob decided that is was time to end the series.  The writing on the show perfectly suited Bob's personality and comedic style.  The casting choices were uniformly excellent, especially with Suzanne Pleshette as Bob's wife Emily.  Special mention must be made of Jack Riley as Bob's patient Elliot Carlin, who appeared in 56 of the 142 episodes.  To say that he is an unforgettable character is an understatement.  The box set also includes an informative booklet, which gives a brief synopsis of each episode, along with its original airdate.