Raoul Kraushaar, the music director for the series, is the listed composer for the theme; however the changes he made to the original are so slight that only a trained ear can tell the difference.

The third theme used for the series is an orchestral rendition of the aria, "Dio Possente" (Even Bravest Hearts May Swell) from Charles Gounod's opera, Faust.

The exact time this theme started being used is uncertain due to conflicting records; however it is agreed that it was the third series, and was used for at least part of season four for the change of ownership of Lassie.

For the final two seasons, the familiar closing visual of Lassie standing on a hill and lifting her paw, was replaced by the credits on a green background, and flashing from one slate to the other instead of scrolling as in most of the series run.

All 10 of the Miller/Martin farm seasons would for the most part focus on "boy and his dog" adventures with Jeff or Timmy getting involved in some sort of trouble, and Lassie eventually coming to the rescue.

[7] Color filming was exploited during the Ranger years with Lassie and her friends sent to exotic locations such as Sequoia National Forest and Monument Valley, creating mini-travelogues for viewers.

[8] For season 17, the program shifted gears again and became essentially an anthology series, with Lassie traveling on her own, getting into different adventures each week (similar in format to The Littlest Hobo and, later, to Here's Boomer).

This (somewhat) brought the show back to its roots by giving Lassie a farm/ranch home base, which is where she settled in for the final two years of the series.

In 1971, in order to promote community-related programming among local affiliates, the Federal Communications Commission moved primetime Sundays to 8:00 P.M. EST with the institution of the Prime Time Access Rule.

Lassie's Rescue Rangers was denounced by both Weatherwax and the National Association of Broadcasters, the latter of which made note of the animated series' "violence, crime and stupidity.

[11] In 1989, what was essentially a sequel series, The New Lassie – featuring Jon Provost as Steve McCullough – aired in first-run syndication.

[17] Every year of its 17-year run on CBS, Lassie placed first in its time slot, Sunday 7:00 P.M. EST, and often ranked among the top 25 shows on television.

The only Martin year Lassie did not climb into the top twenty-five was 1960, when it ran opposite Walt Disney Presents on ABC and Shirley Temple Theater on NBC.

[19] (All awards listed given during the time of, or specifically related to the TV series) Jon Provost called his autobiography Timmy's in the Well!