Do you mean what U.K. station it resembles most? I don’t think there really is one, to be honest. BBC One perhaps, particularly before it moved its news from nine to ten, but even then there would be significant variations as RTÉ One wouldn’t carry any kids programmes and sport would normally only feature if there’s a clash.
Virgin Media One very closely resembles ITV because its main supplier of programmes is ITV. RTÉ doesn’t have that sort of relationship with any particular international supplier and imports come from a variety of sources but of course RTÉ One has traditionally focused on home produced programmes in early evening and prime time.
Location idents with the tagline “ we are ONE” was a idea I had. I’m i the only one who thinks their idents are identical to ITV1’s 2006 emotions idents.
For a little perspective, below is a summary of the RTE One schedule for next Tuesday September 1st 2020:
6.00am - Euronews
6.30am - Teleshopping
8.05am - Father Brown
9.00am - Impossible
9.55am - The Ellen DeGeneres Show
10.50am - Dr Phil
11.45am - Shortland Street
12.15pm - Doctors
12.45pm - Telly Bingo from the National Lottery
1.00pm - RTE One O'Clock News and Weather
1.30pm - Home and Away
2.00pm - Neighbours
2.30pm - Call The Midwife
3.30pm - What Are You Eating?
4.40pm - The Heights
5.40pm - An Nuacht and News for the Deaf
6.00pm - The Angelus
6.01pm - RTE Six One News and Weather
7.00pm - Scannal
7.30pm - Home Rescue
8.00pm - Cheap Irish Homes
8.30pm - How To Cook Well with Rory O'Connell
9.00pm - RTE Nine O'Clock News and Weather
9.35pm - Prime Time
10.15pm - Mrs America
11.10pm - Country Music
12.15am - Holby City
1.25am - Taken
2.20am - Prime Time
2.50am - Telly Bingo from the National Lottery
3.00am - Dr Phil
3.45am - Dr Phil
4.30am - The Doctors
5.00am - Euronews
Virgin Media One Schedule for Tuesday September 1st 2020:
7.00am - Ireland AM, Ireland's only home produced breakfast programme
10.00am - This Morning, live simulcast from ITV
12.30pm - News at 12.30
1.00pm - The Chase, double bill of episodes
3.00pm - Elaine, interview based afternoon show hosted by Elaine Crowley
4.00pm - Gino's Coastal Odyssey
4.30pm - Judge Judy, double bill
5.30pm - News at 5.30
6.00pm - The Six O'Clock Show, early evening topical chat show from Virgin Media One
7.00pm - Paul O'Grady, For the Love of Dogs - What Happened Next
8.00pm - News at 8.00
8.30pm - Red Rock
9.00pm - Celebrity Who Wants To Be A Millionaire
10.00pm - Tonight Show, hosted by Matt Copper and Ivan Yates with a panel of guests discussing the issues of the day
11.00pm - A Confession
10.00pm - Tonight Show, hosted by Matt Copper and Ivan Yates with a panel of guests discussing the issues of the day
That may well be the description of the Tonight Show in the Sky EPG, but Ivan Yates retired fairly publicly from all his broadcasting roles a few weeks back.
It appears there some change coming for RTE News Now, This is from Today's Autumn Schedule announcement,
"This September also sees a refreshed version of the RTÉ News app launch, ensuring an enhanced user experience, more prominent live content and video, with a rebrand to the core RTÉ News identity for the app and the RTÉ News television channel. "