Finished season 1, I did feel sorry for Steven Hill by the end, even if the side-lining of the character was mostly down to his own behaviour the whittling away of the size of his role was very odd to watch. It was fun watching the guest agents who were obviously filling in for scenes originally written for him (Richard Anderson for example).
I figured they would've mostly just given his material to Rollin. Landau, despite being only a "special guest star," was effectively the series lead by the end of the season. The only reason it didn't stay that way was because he didn't want to commit to the series for more than a season at a time, so the producers brought in a new lead rather than just promoting Landau to the lead.
I recently rewatched the M:I movies (upon finishing the revival series), and it struck me how the so-called "Jim Phelps" that Jon Voight played in the movie was really more like Dan Briggs. Not only did he have a stern, aloof quality that was more like Briggs, but he supervised his team from the safe house rather than actually joining them on the operation, much like Briggs did in the later-filmed episodes.
I'm mildly surprised (assuming the DVD's are in broadcast order) they didn't kick off with a strong Jim episode to sell the new lead. He had some nice bits in The Widow, but it was more a Mr. and Mrs. Landau episode. I know the show will become famous for the interchangeability of its main cast, but considering this is the first time they've done it you think there would have been a big push about getting the audience on side.
The DVDs are in broadcast order. Maybe they developed the script before they'd decided to bring in a new lead rather than making Landau the star, or before they'd cast the new lead.
Trek felt like a stronger episode for him, and it was mildly amusing in an episode with that title to get the Star Trek Rock; the fort from Arena and Mark Leonard all together on screen.
Not to mention a score by TOS composer Gerald Fried.
I found the recent show Leverage had strong similarities to the old Mission Impossible show.
Oh, absolutely. As I often say, M:I was really a con-artist/heist show rather than a spy show; the spy stuff was just an excuse for the con artists and thieves to be the good guys.