Spoilers as far ahead as I can find them, plundered from the BBC website and Mustardland. I can't see anything from the Daily Mail but in recent times it's been very brief and hasn't added much to the RT preview. Where's Helen off to, then?
21st Jan Helen takes a big step, and confusion rages at The Bull.
22nd Jan Alice faces a dilemma, and Adam makes his presence felt.
23rd Jan There’s surprising news for Harry, and Chelsea turns detective.
24th Jan There’s concern for Brian, while Eddie finds life a drag.
25th Jan There’s light at the end of the tunnel for the Grundys, and Susan stirs the pot.
26th Jan Tension mounts at The Bull, and Tony makes an enemy.
WRITER: Caroline Jester
DIRECTOR: Kim Greengrass
Brian Aldridge… Charles Collingwood
Helen Archer … Louiza Patikas
Jolene Archer … Buffy Davis
Kenton Archer … Richard Attlee
Natasha Archer … Mali Harries
Tony Archer … David Troughton
Lilian Bellamy … Sunny Ormonde
Alice Carter … Hollie Chapman
Susan Carter … Charlotte Martin
Harry Chilcott … Jack Ashton
Clarrie Grundy … Heather Bell
Ed Grundy … Barry Farrimond
Eddie Grundy … Trevor Harrison
Emma Grundy … Emerald O‘Hanrahan
Brad Horrobin … Taylor Uttley
Chelsea Horrobin … Madeleine Leslay
Adam Macey … Andrew Wincott
Azra Malik … Yasmin Wilde
Rebecca Price … Rose Robinson
Radio Times Ambridge Diary January 21st-26th
Romance may be in the air but Alice fears that she and Harry are moving too fast. She also has to rush Brian to the doctor's with some strange symptoms. Chelsea is still recruiting volunteers for The Bull's fashion show, but one of her models could get more than he bargained for. Confusion reigns over the Longest Drinker competition, Helen decides to take a break from the dairy, and Ed and Emma find a solution to their problem.
Brian's symptoms are almost certainly going to be cat-related, aren't they?
28th Jan It’s panic stations for Lilian, and Mia is not impressed.
29th Jan The results are in for Kenton, and there’s a new face in Ambridge.
30th Jan There’s an emergency at the Bull, and Brad puts his foot down.
31st Jan David steps in to help, and the fashion show is thrown into chaos.
1st Feb Vince makes a surprising offer, and there’s an unexpected visitor for one resident.
2nd Feb Jolene finds herself cornered and Mia makes a big declaration.
Writer: Liz John
Director: Julie Beckett
David Archer …. Timothy Bentinck
Jolene Archer…. Buffy Davies
Kenton Archer …. Richard Attlee
Lilian Bellamy …. Sunny Ormonde
Harrison Burns …. James Cartwright
Susan Carter ….. Charlotte Martin
Vince Casey …. Tony Turner
Eddie Grundy …. Trevor Harrison
Emma Grundy …. Emerald O‘Hanrahan
Mia Grundy …. Molly Pipe
Brad Horrobin …. Taylor Uttley
Chelsea Horrobin …. Madeleine Leslay
Tracy Horrobin …. Susie Riddell
Fallon Rogers…. Joanna Van Kampen
Markie …. Greg Hobbs
Markie? Who he? The actor has been in TA several times before. Copying shamelessly from the indefatigable posters of Mustardland, he most notably played a customer for Eddie’s limousine as a hungover former PE teacher, a groom en-route to his wedding. He was Adrian 'Yam-Tam' York & revealed that the Grundy boys had been called Gormless 1 and 2 by teachers and Emma was known as Sweary Carter. 
4th Feb Harrison has concerns, and there’s an awkward encounter for Chris.
5th Feb There’s trouble at the Bull, and Adam stamps his authority.
6th Feb Lynda takes the lead, and Alice is keen to make a good impression.
7th Feb A new arrival causes problems at Bridge Farm, and Susan is up to mischief.
8th Feb Alice is in the firing line, and a decision is reached at Bridge Farm.
9th Feb Harry makes a surprising admission, and the problems continue to mount for Jolene.
Jolene Archer… Buffy Davies
Kenton Archer …. Richard Attlee
Pat Archer…. Patricia Gallimore
Tom Archer …. William Troughton
Tony Archer …. David Troughton
Harrison Burns …. James Cartwright
Alice Carter …. Hollie Chapman
Chris Carter…. Wilf Scolding
Susan Carter …. Charlotte Martin
Eve Chilcott …. Juliet Aubrey
Harry Chilcott …. Jack Ashton
Clarrie Grundy …. Heather Bell
Adam Macy …. Andrew Wincott
Fallon Rogers …. Joanna Van Kampen
Lynda Snell …. Carole Boyd
I remember Juliet Aubrey from the BBC TV adaptation of Middlemarch many years ago with the lovely Rufus Sewell. Harry's mother? Looks as if Adam is going to take over in the dairy. Oh dear.