Christopher Lydon, who was recently offered the Philadelphia bureau by The New York Times, has decided that on the whole he'd rather report politics for WGBH, the public TV station in Boston.

Lydon has covered politics for The Times' Washington bureau for the past eight years. His first assignment for Channel 2 will be covering the "first 100 days" of the Carter administration here.

He is expected to do a regular commentary for WGBH in addition to his political coverage, according to friends.

Wednesday night, NBC Board Chairman Julian Goodman gave a dinner at "21" for Herbert S. Schlosser who was named NBC's chief executive officer earlier that day.

Toasting Schlosser at the end of the festivities, which were attended by the RCA and NBC boards, Goodman would up by saying: "Herb, please be wise with us and be good to us."

The takeoff on Barbara Walters' benediction for President-elect Carter a couple of weeks ago on her ABC TV special, convulsed Goodman's audience.

Incidentally, Walters' interview with President and Mrs. Ford finished way, way down in last week's Nielsen ratings. Up against "The Wonderful World of Disney" and "60 Minutes," Baba Wawa's Sunday interview tied for 49th place with - are you ready for this" - "Baa, Baa Black Sheep."

Lock for Paul Berry to take a major part on Channel 7's "7:30 Live" show soon, as Frank Getlein, who no longer co-hosts the show with Chris Curle, gets more news and "field" assignments for the evening show.

At least three Texas television stations - two in Amarillo and one in Corpus Christi - plan to carry news-film of the next execution of a prisoner in that state.

The next death in the Texas electric chair is slated for Jan. 19. A news director at one of the Amarillo stations was quoted by The Dallas Times-Herald as basing his decision to run film, if it becomes available, "on a survey that 70 per cent of all Texans were in favor of capital punishment.

CBS News plans an hour-long documentary on the evening of Jan. 17, the date in Utah. However the network will not show the actual death but will instead focus on the public attention given the Gilmore case.

A U.S. district judge in Texas recently ruled that prison officials in that state cannot bar in Dallas TV news reporter from filming an execution of a convicted felon.

A Houston news director who polled 14 stations in seven Texas cities, reported that eight flatly declined to run execution footage, three said a decision would have to be made at the time of the event three stations would carry film if available.

Channel 7 General Manager Thomas B. Cookerly has been named executive vice president of the Evening Star Broadcasting Co., the WMAL licencee. He's been GM there since 1971.