Leicester - Service 20 (City Centre to Blackmore Drive) Mon-Sat is operated by Centrebus which runs via Leicester Royal Infirmary but Sunday services are operated by Vectare which follow a different route via Braunstone Gate.
Also in Leicester, the Saturday 22B between Birstall and Evington is operated by First, whereas the rest of the route (22, city centre - Evington, and 22A, Barrow-upon-Soar - Birstall - city centre - Evington) is operated by Centrebus.
In the Soar Valley to the north, following the withdrawal of the Kinchbus 2 beyond Sileby, the transportation system down there has become a lot more complicated:
Kinchbus 2, originally ran Loughborough - Quorn - Barrow-upon-Soar - Sileby - Cossington - Birstall - Belgrave - Leicester, but now runs between Loughborough and Sileby only;
Vectare 2X, introduced after the 2 was cut; identical to the original service 2 except for running via Abbey Lane instead of Belgrave in Leicester, and only runs in the early mornings and late evenings;
Centrebus 27, existed prior to the truncation of the 2; runs Loughborough - Walton-on-the-Wolds - Barrow-upon-Soar - Seagrave - Sileby, with the first run beginning in and the last run continuing to Mountsorrel - Rothley - Syston - Thurmaston.
Centrebus 27X, introduced earlier this year, replacing a midday round trip of the 27. Avoids Walton-on-the-Wolds and Seagrave, making it quite similar to the 2 except for not serving Quorn.
Centrebus 128, ran three times a day, with the first two round trips being Leicester - Birstall - then straight up the A6 to Barrow-upon-Soar - Sileby - Cossington - Birstall - Leicester, with the final round trip travelling back through the villages instead of going up the A6; superseded by the 22A.
Centrebus 22A, previously mentioned, originally Evington - Leicester - Belgrave - then around the houses in Birstall, before the old 128 route was added from Birstall onwards as a rather awkward appendage, even keeping the around-the-houses bit in Birstall!
The additional trouble is that the buses all seem to run at similar times to each other in the villages.