I know for a fact that
Mission and
Mannix had higher Network Licensing fees (CBS) and routinely came in costing more than contemporary
Trek episodes, so I dunno that the Mission figure there is accurate...unless that is what they shows were budgeted for but routinely ran over.
@Harvey knows this subject better than I though.
If you follow the link that page cites for the
Mission: Impossible budget, it says the budget was "at least $180,000 per episode." I don't have a ton of data points at the moment — I've only dabbled with the Bruce Geller papers — but I do have a couple of data points from the show's third season (1968-69), and they're both higher than that figure.
Mission Impossible Episode (Episode Budget/Actual Cost)
"The Heir Apparent" ($193,945/$198,328)
"The Mercenaries" ($192,883/$216,600)
I have more information regarding the second season of
Mannix (also the 1968-69 broadcast season):
Mannix Episode (Episode Budget/Actual Cost)
"A Copy of Murder" ($183,977/$187,210)
"Edge of the Knife" ($188,974/$192,743)
"End of the Rainbow ($182,439/$188,568)
"Only Giants Can Play" ($186,763/$197,514)
"Pressure Point" ($179,517/$180,210)
"In Need of a Friend" ($182,458/$187,016)
"The Silent Cry" ($176,891/$183,884)
"To The Swiftest, Death" ($187,838/$191,364)
"Who Will Dig The Graves?" ($187,850/$206,995)
Bruce Geller couldn't keep costs down like Fred Freiberger (notice how
none of these episodes came in
under budget; something which regularly occurred with Freiberger on
Star Trek's third season, also produced 1968-69). Apparently, Geller was eventually banned from the Paramount lot as a result of these cost overruns, becoming an executive producer in name only on
Mannix and
Mission: Impossible.