"I sawr a behd turday."
Hmm, /ʔaɪsɔːɹəbɜːd/. I understand the intrusive-r pronunciation up to the final word. Is the r intrusive, as Sir Michael Redgrave used to admonish his moppets not to pronounce, or does it somehow represent the schwa of the usual pronunciation of today /tə'deɪ/. I understand the intrusive-r to occur at the end of syllables when the next syllable starts with a vowel. YMMV.
The only sense I could make out of the
ur in
turday was a non-rhotic representation of some vowel I couldn't even begin to think how to represent. The
eh in
behd was my attempt that I probably shouldn't have begun to think how to represent for some other non-rhotic vowel.