Here is a list of the following TV Guides and People magazines you asked about.  These are on a first come, first serve basis.
Here's the list:

6-16-79         Cast of Dallas          $16.95
3-08-80         Cast of Dallas          $14.95
11-15-80        Larry Hagman            $14.95
5-9-81          Cast of Dallas          $14.95
3-27-82         Larry Hagman            $14.95
9-18-82         Victoria Principal      $16.95
5-28-83         Landers/Kercheval/Hagman $14.95
10-15-83        Larry Hagman/Joan Collins $14.95
3-17-84         Priscilla Presley       $16.95
4-20-85         Deborah Shelton         $14.95
10-12-85        Victoria Principle      $14.95
11-30-85        Is Knots Landing better than Dallas or Dynasty? $14.95
12-29-85        Larry Hagman, Joan Collins $14.95
5-24-86         Larry Hagman            $14.95
3-14-87         Victoria Principal      $14.95
3-26-88         Sheree Wilson           $12.95
2-11-89         Larry Hagman            $14.95
5-04-91         Larry Hagman            $14.95

People:

12-17-79. Those Dallas Women.  Principle, Gray, and Tilton on cover with Hagman.  $19.95

4-14-80.  Dallas' Dastardly Larry Hagman.  Nice cover photo.  $19.95

7-14-80  Who Shot J.R.?  $19.95

12-29-80.  The 25 Most Intriguing People of 1980.  Hagman one of 6 on the cover.  $19.95

1-26-81.  Dallas' Naughty Bride.  Charlene Tilton on the cover in wedding dress.  $19.95

3-30-81.  Dallas' Sugary Victoria Principal.  Nice cover photo.  $19.95

12-21-81.  Merry Christmas, Y'all!  Larry Hagman on the cover.  $19.95

5-23-83.  Victoria Principal on the cover.  Nice cover photo.  $19.95


Time:

8-11-80.  Larry Hagman on the cover.  "TV's Dallas, Whodunit?"  $19.95

McCalls:

11-84 Larry Hagman  $24.95